Children From Five Different Countries Essay - 1933 Words

557 children from five different countries (ages 6-10). Researchers gathered information pertaining to childhood TV- violence viewing, identification with aggressive TV characters, aggressive behavior, parents’ socioeconomic status (measured by educational level), parenting practices, and what parents watched on TV (Huesmann, Moise- Titus, Podolski Eron, 2003). The results showed that children who watched violence on television for many hours while in elementary frequently were displayed higher aggression when they became teenagers. Huesmann, Moise- Titus, Podolski Eron (2003) also found that participants that viewed a lot of violent television shows at the age of 8 were more likely to engage in criminal acts that break the law. Researchers have found that children who express defiant, aggressive and explosive behavior by the time they’re in kindergarten is the result of the type of relationship they have with their parents (Stormshak, 2000). Parenting practices seem to have an influence on children’s behavior. There are four styles of parenting but only three appear to affect and damage a child. The first style is an authoritarian parent. This type of parent uses forceful measures to try to enforce proper behavior upon their child which results in the child being angry and resenting them. This form of parenting leads children to be angry, defiant, and lack motivation. The permissive parent is loving and often allows their child to do whatever it is they please, however,Show MoreRelatedEffects Of Protein Energy Malnutrition On Children And Children1708 Words   |  7 PagesThe different foods are very important to human life because of foods have different essential nutrients helping to proper ly growth and development of physically with mentally. Protein energy malnutrition is the deficiencies of protein, energy and other micronutrients. This malnutrition disease can be affected from not eating enough healthy diets and recognizing by physical appearance signs, dietary data and bio-medical data. There are some factors affecting in age groups women and children malnutritionRead MoreLike The Leader Of An Orchestra1448 Words   |  6 Pages2013, p.36). Martti Hellstrà ¶m is the headmaster of the Aurora Primary School located in Finland. Pearson is a leading company in education that provides most of students’ educational materials such as textbooks. Pearson also holds a standing of countries on an index that measures cognitive skills and education. The cognitive skills are measured by looking at global exams (such as the PISA) while the education attainment is measured by literacy and graduation rates. On the Index of cognitive skillsRead MoreThe Abuse too Many Chil dren Face1553 Words   |  6 Pagesterrifying thing to think about, let alone discuss. Many children face abuse and do not know how to get help. In some countries other than the United States child abuse is more widely accepted or overlooked. Many people know the signs of a child who is abused, but a lot of people will not say anything. The biggest thing that people need to realize is that is they would speak up against child abuse they could then potentially save children from further abuse and create a better life for them. ChildRead MorePakist Child Health And Mortality1658 Words   |  7 PagesAisha Hanif PM 565 04/28/15 Global Health Country Report Pakistan: Child Health and Mortality Introduction Since it’s separation from India in 1947, Pakistan steadily grew to a country with a population of about 184.35 million people in 2013, making it the sixth most populous country in the world (â€Å"About Pakistan†). Pakistan is broken into four provinces: Punjab, Sindh, Balochistan, and Khyber Pakhtunkhwa (â€Å"About Pakistan†). Its capital is the city of Islamabad. While Pakistan has taken manyRead MoreA Mission Trip : Puerto Nuevo Essay1575 Words   |  7 PagesGod to the children and workers of the orphanage. We will be focusing on those are eighteen and younger, and will be making sure we give them an abundance of supplies, so the orphanage can use the supplies we give them for years. Once we fully supply the orphanage, we will be there for the children. We want to make them feel safe in an unsafe environment and introduce God into their lives to let them know that he will always be watching over them. Mexico is the fourteenth largest country in the worldRead MoreThe Importance Of Abortion In Buddhism1342 Words   |  6 PagesAbortion is when someone kills the fetus in the womb of the mother. Part of the Buddhist religion, following the Five Precepts, is to not kill or harm any living beings. From understanding the Five Precepts, one can understand why the Theravadin Buddhists disapprove of abortion. The topic of abortion is very controversial and the idea if it should or shouldn’t be performed varies from person to person. This is a very interesting topic due to the fact that abortion in the United States can be performedRead MoreSummarise Entitlement And Provision For Early Years Education Essay765 Words   |  4 PagesSince 2004, all children in the UK aged three and four years old have been entitled to free places at nursery or another preschool setting (including childminders). From 1st September 2010 the Government extended these hours from 12.5 to 15 hours for up to 38 weeks of the year. The free entitlement provides universal access to early childhood education and care, ensuring that all children have the opportunity to benefit from early years education. The extended hours also supports parents who wishRead MoreSweden : A Strict Guideline For All Medical Professionals927 Words   |  4 Pagesfor all medical professionals; this is only going to briefly discuss the common 3 careers in medical doctors, nurses and pharmacists as was discussed in the previous paragraph. Undergraduate medical education at one of the six medical faculties takes five and a half years and is completed with the medical degree to become a doctor in Sweden. After a preregistration training program called †allmà ¤ntjà ¤nstgà ¶ring (AT)† or general medical training of at least 18 months needs to be successfully completed inRead MoreReferral Services And Health Education1400 Words   |  6 PagesChildren (3-6 Yrs) †¢ Immunisation †¢ Health Check-up’s †¢ Deworming †¢ Minor illness treatment †¢ Referral Services †¢ Supplementary Feeding †¢ Growth Monitoring †¢ Early Childhood Day Care †¢ Pre-School Education †¢ Nutrition and Health Education Adolescent Girls (11-18 Yrs) †¢ Health Check-up’s †¢ Deworming †¢ Referral Services †¢ Take Home Ratio’s. †¢ Non-Formal Education, focus on vocational and home based †¢ Nutrition and Health Education Pregnant Women †¢ Immunisation †¢ Health Check-up’s †¢ Referral ServicesRead MoreGermany : Germany In The Heart Of Europe912 Words   |  4 Pages(Geography Climate, 2016). It’s the only Country in Europe to boarder nine countries. The nine countries include Austria, Belgium, Czech Republic, Denmark, Netherlands, Luxembourg, Poland and Switzerland. Germany has direct access to the Baltic and North seas. With a coast line of one-thousand four-hundred eighty-four miles. Germany stretches over 137,847 square miles, which is slightly smaller than Montana (Germany: Facts and figures, 2017). The country is covered by nearly one-third forest with

Braille Passion - 798 Words

According the World Health Organization, approximately 285 million people across the world are suffering an impaired vision. They cannot read or write in normal letters; they use Braille to communicate. Braille is a writing system that employs tactile sensation instead of its visual counterpart. I have been learning Braille for a year and am able to read and write in English Braille. This system of writing is my passion. The reason why Braille writing captivates me dates back to three years ago. I was seeing floaters in my eyes, and the doctor diagnosed me with vitreous degeneration. The diagnosis meant that my vitreous, the fluid inside my eyes, had a chance to detach. The detachment can permanently damage my vision. Even without the†¦show more content†¦Unlike any normal writing systems, Braille is written from right to left but is read from left to right. Moreover, what I have learned from this passion is that there is no limitation that can block you from enjoying a succ essful life. If your visual condition bars you from writing normally, you can still write in Braille and get your ideas heard. Braille teaches me that, if you have any disability or disadvantage, all you have to do is to try harder and overcome whatever is keeping you behind. Once you overcome those obstacles, you are standing on the same ground as everyone else but even with more experiences and a more enduring quality. With this passion, I have found the meaning of life. In life, you are given a privilege: whether it is a complete vision or any other things that you might normally take for granted. The reason why you have those privileges is to use them to assist those who lack such opportunity. For instance, if you have a perfectly normal vision, you can learn the Braille more easily than the blind do. You then can use that knowledge to help the blind by writing a Braille book or simply writing a sign in Braille. I once assisted with translating a fairy tale into Braille for the kids who do not have a chance to read it. One of the works I take greatest pride in is a star wheel. I used Braille to symbolize eachShow MoreRelatedBraille : The World Of The Blind1162 Words   |  5 PagesBraille: Imagine if you couldn t see anything. You are seized by darkness and enclosed by a constant perception to look. You are blind as a bat and the colors you see in this world are only the ones you have imagined. The world would be a very contrasting place. Powerless to read a thrilling book and incompetent to do the most delighted hobbies. Unable to understand the appearance of your self and others, where everything you see is what your wild imagine has led you to believe. This is the worldRead MoreAssistive Technology Plan Essay975 Words   |  4 Pageslet his impairment affect the quality of his life. He is completely self-dependent. He uses his walking stick to get from class to class and because the school is equipped with an AT setting, Johnny is able to make to the correct class by using the Braille directly under the room numbers. Johnny is an honor roll student and he would say that his greatest strength is the ability to hone in on his other senses. Johnny is a fantastic saxop honist, in fact he is self-taught thanks to his ability to honeRead MoreThe Violation Of Human Rights996 Words   |  4 PagesAfter reviewing the Human Rights Watch website, www.hrw.org, I decided to write my paper on the violation of the human rights of people with disabilities. I have a passion for working with people that have disabilities and I think so much more should be done for them. The United States have made great strides in being respectful for their human rights and it is time to see the rest of the world step up and take responsibility. There is also much more needed to be done in the United States but weRead MoreA Scientist, By Aldous Huxley848 Words   |  4 Pagesmaking remarkable scientific discoveries, although for some, unfortunate circumstances prevent them from working in scientific laboratories. Whether it be due to a major illness or a physical defect, many inspired adolescents are kept from their true passion, due to the demands of the field. These individ uals are often forced into much less favorable professions, but still retain the analytical mind of a prospective scientist. However, those lucky few who are allowed to express their scientific interestsRead MoreTheme of Alienation in Literature Essay1118 Words   |  5 Pagesdreams to further their detachment. This woman is described being her husband’s ‘habit,’ which really illustrates the effect that she is being dragged down in her life. She is alienated from true passions and real love by being stuck with this man. When she actually feels her husband, there is a braille touch to him. This man is blind for his ‘honey bunch’s’ needs and does not seem to realize any sort of distance she endures. It pains this women to think of how she he has wasted many of her youngerRead MoreEveryday Above Ground Is A Good Day984 Words   |  4 Pagessingle mother, she worked multiple jobs to raise three boys in the Jewish neighborhoods of Los Angeles. On e of these boys would become my father. Shortly after, he would leave my mother. After her sons moved on into adulthood, my grandma learned Braille and taught cooking skills for the blind around Southern California. When her eyesight finally left her, she received Social Security and grew adamant about taking care of herself. That s how I remember her. She would laugh when I offered to cookRead MoreHow Faith Influences Life and its Path1227 Words   |  5 PagesPossibly because Martel had related the importance of religion in his novel to the quote, â€Å"religion is more than right and ritual. There is what the right and ritual stand for† (Martel 48). He wanted to stand for religion and connect it with his passion of writing. I link the prominent usage of the Bible and biblical allusion to the expansive knowledge and grandeur of the Bible’s teachings. Being the best selling book of all time, some may question the Bible’s accuracy, but there is still a lackRead MoreGreat Composers of the 19th Century1106 Words   |  5 Pagesshe encou raged him to become a charity student at the state –supported school for the deaf and blind in St. Augustine, Florida. At the age of seven, he begin to receive a formal musical education and learned to read, write, and arrange music in Braille; score for big bands; and play piano, organ, saxophone, clarinet, and the trumpet. Some of his major influences include big band clarinetist Artie Shaw, big band leaders and pianists Duke Ellington and Count Basie, jazz piano giant Art Tatum, altoRead MoreHelen Keller: An Idol to Deaf People?2987 Words   |  12 Pagessociety focus on Helen as a pitiful deaf blind girl in need of nurturing and communication and ignored the rest of her passions that made her the woman she was. This research paper will show the important aspects of Helen Keller’s timeline throughout her 88 years of life. The timeline will be broke up into twenty-year segments in which the important information connecting to her passions will be discussed. This will allow us the opportunity to see a different side of Helen Keller than what is portrayedRead MoreAll The Light We Can Not See By Anthony Doerr1514 Words   |  7 Pagesand considered her disability an obstacle she could be able to conquer. He helped her develop skills to manage her condition in various ways such as making her wooden models of their neighborhood to be able to navigate the streets, and teaching her braille. Marie-Laure was very dependent on her father and his assistance, and when they moved to Saint-Malo where he was arrested and taken to a German prison, Marie-Laure was left hopeless and devastated. She began helping her great uncle, who she lived

Chiefly Disposed From Individual Households-Myassignmenthelp.Com

Question: Discuss About The Chiefly Disposed From Individual Households? Answer: Introducation The following is a concept design of a waste water system designed for Miri, Indonesia. The system is significant to that area because it is specific to the locations altitude which is 5m above the sea level. Being a coastal area, the land is gently sloping. The nearest river is 500m away from the treatment site while the ocean is 5km from the treatment site. In this concept design, a system is needed that can enable the treatment of water gathered from the local area community, treating it into a harmless waste product and further disposing it accounting river as effluent. With a population of 20000 people, the per capita water usage is estimated at 130l per day. This means that large volumes are collected from individuals and as no industrial activity is noted in that area, it is assumed that the disposal water is chiefly disposed from individual households. This means that the waste itself is not toxic but rather domestic, organic waste matter. As such, no complicated mechanism of waste water treatment is necessary and therefore it is recommendable to use large open space purification methods (Hoekstra, 2005). In this design, an analysis is done comparing 3 main types of water treatment in order to obtain the best disposal alternative. These 3 methods of disposal are aerated tank disposal, oxidation and the use of a biofilm filter (Vesilind, 2003). With the population at 20000 people and per capita usage at 130l/c/day, we have an overall water disposal rate of 2600m3 of water per day. However, as there is a conversion of sewage water to water supply of 85% - 95%, 90% will be considered for this case therefore leaving the treatable discharge at 2340m3 per day. Alternatives: Waste water is usually an effluent of a variety of processes ranging from industrial to domestic which have varying degrees of toxicity and pathogen accumulation. It is therefore imperative to identify a model or process which cleans out the specific contaminant targeted to such a level of cleanliness that would be acceptable for direct human consumption. As it stands, a variety of state of the art methods of achieving this exist with varying working principles. This report seeks to single out and carefully analyze three main processes of treatment which utilize aeration, oxidation and biofilms in the relative purification of the waste water (Campbell, 2011). The use of an aeration tank is a purification method that combines both the bacterial decomposition activities and reactions to break down wastes in the waste water into less harmful substances. When the right amount of oxygen is allowed into the water or imposed on it, this provides an optimal environment for aerobic digestion of the pollutants. It is mainly used in municipal and industrial processes where large quantities need to be purified over a short time to the cleanest possible degree. It is a secondary process and is proceeded by purification, disinfection and other water sanitation processes (Oxymem, 2014). This method works by supplying oxygen needed by pre-introduced bacteria in the water so as to provide them with the optimum conditions for the aerobic decomposition of waste water pollutants. The end product of this degradation is usually carbon dioxide and water formed by decaying the organic hydrocarbon compounds. The lack of oxygen in waste water treatment results in slow and incomplete reactions which make the water even harder to treat and in some cases even produce odours. This makes the aeration tank relatively safer than other technologies that limit the amount of getting into the waste water to aid in the breakdown of pollutants. Aeration happens in aeration tanks where nothing, other than air is introduced into the water and is the most effective method for breaking down activated sludge (Pure Water Gazette, n.d.). The main advantages of this method are the relatively cheaper capital and maintenance costs and the less equipment required. It is therefore preferred as a secondary process when treating large volumes of water as this process can happen on an open aeration water basin or in a tank with the air being imposed onto the water. The products of this organic reaction are also relatively safe and do not need to be filtered metals and other chemicals are involved. This also significantly reduces the cost of further treatment practices that the waste water would pass through. Another method of state of art treatment that could be considered is the oxidation ditch. This is a process of molecular breakdown that happens when a compound is introduces to a reducing or oxidizing material. In most cases, the end product of this is usually a precipitate and can be filtered out in subsequent water treatment steps. Oxidation ditches are also used by financial and industrial authorities but are best suited for treating waste water whose state of pollution is chemical in nature. They can therefore be set up in a variety of regions with the best possible regions being those closest to industries (Mohajerani, 2009). This method, while similar in description to the aeration tank method works in a significantly different way. While aeration tank method uses the oxygen pumped into it or regulated into it from the air to provide an optimum environment for bacteria, this method uses the oxygen in the air to directly break down chemical components by reduction and oxidation. The precipitates are relatively clean and further reactions into more toxic compounds are prevented in the tank. It usually works for wastewater with a mixed liquor suspended solid mass falling in between the range of 3000ppm to 4500ppm. This method of treatment can handle flows of up to 3500m3 of water per day with a BOD content of 100ppm to 250ppm (Waste Water System, 2017). This method is advantageous as it produces the cleanest effluent without requiring extensive infrastructural investments. It utilizes rotors that provide for circulation at a slow rate in order to allow for maximum oxygen uptake by the water allowing enough time for precipitates to settle. This provides for a reliable and safe method of particle separation without needing further investment in filtration systems. As such, it would be suitable for any urban center provided the population did not exceed the amount that can be produced within a given time period. It is however slow leading to low treatment rates which means it cannot be applicable to areas with a great demand of clean water (Evoqua, 2017). Another state of art treatment method is the use of a biofilm filtration unit. This is where waste water having been discharged from industries or rivers is channeled into a filtration layer that consists of an organic lining and a filter. This seepage occurs slowly with pollutant substances in the water being trapped by the film leaving the water to flow on in a cleaner state. This method of water purification works well in low demand areas where the number of people using the water does not exceed 8000. It is therefore best suited for either domestic usage or usage in town areas where the number of people to be serviced by the clean water is relatively low (Jiang, 2013). This method works by attaching a layer of organic microorganisms onto the lining of a variety of materials that are applied in the purification stages. This allows the microorganisms to attack the pathogens that would otherwise have been too small to combat using a regular filter therefore leaving relatively clean water to flow out. This method does require part replacement as the filters need to be cleaned then replaced on a regular basis. These are usually replaced after regular intervals as letting a filter run too long without changing it would lead to either blockages or further contamination of the water. The filtration layer could be any permeable membrane or material and can even include granular solids like sand (Jiang, 2013). This method of water filtration is mostly used in rural areas due to its easy assembly and the relatively lower demand population. It is significantly cheaper than most other models of waste water treatment but however, it is very effective for treating the said water. Installation of this biofilm does not require great professional expertise as the other methods and it can be used by individuals for residential water cleaning purposes depending on both the amount of contaminant and the level of cleanliness required. The effluent from this method is fairly clean but in most cases, that may change depending on the level of toxicity or contamination (Jiang, 2013). Reccommendation: The method of breakdown used will be the aeration tanks. This tanks are especially beneficial in such a small community as they are adequate enough to cater for the needs of the residents. It is also cost effective with the development of this waste water treatment system necessitating only to provide and open surface wide enough to allow for aeration with the best possible surface area to volume ratio. Aerated tanks are also fairly easy to operate and need minimal skilled operatives operating the equipment in comparison to the other methods. Aerated tanks would be easier to service and clean for silted material over time in comparison to the other methods. Owing to the fact that it is going to be draining into a river, the necessary steps will have to be put in place to ensure the best possible quality that will not be toxic to anything or anyone using the river. These steps are outlined below. Water from a dirty source will come in as influent and head over to storage at the storage pool. Here, it will be retained briefly so that it can enter the screening zone gradually. This is done intentionally to prevent blockage of the chambers. Screening will then take place with the filtration of waste water taking place to remove the huge particles. From here, water is then redirected to the grit chamber so as to begin the process of settling down the insoluble solids. They are usually separated from the rest and cleared later during chamber cleaning. After the dropping of some particles in the grit chamber, the waste water moves on to the silt chamber where siltation then occurs in order to separate the finer, insoluble particles that were not removed in the earlier. From this point onwards, the process of purification can begin at the primary purifier. From here, it proceeds to the aeration tank for further decomposition through aerobic activity and then to the necessary disinfection using chemical action (Norweco, 2006). Other necessary tertiary treatment such as Phosphate removal, nitrogen removal etc. will be included in the treatment. All this is included to ensure that the water has achieved the desired output of 0.25 the solid concentration. From here, the water is now released as effluent. The sludge on the other hand will be disposed of systematically in a process beginning from the sludge storage pool. Here is where it is stored after extraction from the influent during the primary waste water treatment processes. It is then stored in a sludge thickening tank where its density is significantly increased by reducing the amount of water contained. Owing to the amount of sludge expected, the sludge dewater facility to be used can be rotating discs which will be provided in accordance with the quantity of sludge. After that, anaerobic or aerobic digestion can take place before drying and final disposal in landfill. Equipment, Cost Project Time: There are 4 main aerated tank systems which include package plants, oxidation ditches, surface aerated basins and deep shaft vertical treatment. In this case study, it is recommendable to use the package plant due to the economic aspect of it considering that 20000 people is too minute a figure to develop a large-scale system. The package plant condenses more activities into one allowing there to be little retention time versus the amount of water processed. The equipment used in this water treatment include a pump for pumping the waste water across the course of purification. While a majority of the processes will operate under gravity, a pump is needed to raise the water and even dispose it as effluent. This process also uses a wide variety of tanks, each of which is specialized to its specific purpose. These include the storage pool/tank, the silt chamber, the aeration tank, the disinfecting tank, sludge thickening tank and digestion tanks. A grit chamber will also be constructed between these processes whose main purpose is to slow water down long enough to provide for deposition of solids. Filtration membranes are important too and are available in a variety of sized and shapes to suit various treatment plant dimensions. Other aerating equipment e.g. a blower is necessary to ensure proper aeration. Finally, rotating disks will need to be availed to cater for the dewatering of the sludge in its near solid state. The chemicals needed for disinfection could be either ozone, chlorine dioxide or chlorine. The treatment plant could cost between $250 million to $400 million depending on the preliminary site reports, site conditions and complexity of the design. The running costs would cover replacement of the filters, removal of silt and deposited solids, periodic cleaning of the channels and pipes, power requirements and cost of skilled and unskilled labour. References Centi, G. and Perathoner, S., 2014. Advanced Oxidation Processes in Water Treatment. In Handbook of Advanced Methods and business Processes in Oxidation Catalysis: From Laboratory to Industry (pp. 251-290). Comninellis, C., Kapalka, A., Malato, S., Parsons, S.A., Poulios, I. and Mantzavinos, D., 2008. Advanced oxidation processes for water treatment: advances and trends for RD. Journal of Chemical Technology and Biotechnology, 83(6), pp.769-776. Hoekstra, A.Y. and Hung, P.Q., 2005. Globalisation of water resources: international virtual water flows in relation to crop trade. Global environmental change, 15(1), pp.45-56. Ikehata, K. et al., 2008. Ozonation and Advanced Oxidation Treatment of Emerging Organic Pollutants in Water and Wastewater. Ozone: Science and Engineering 2006 (30): 21-26. Jiang, G. and Yuan, Z., 2013. Synergistic Management of anaerobic wastewater biofilm by free nitrous acid and hydrogen peroxide. Journal of hazardous materials, 250, pp.91-98. Hoekstra, A.Y. and Hung, P.Q., 2005. Globalisation of water resources: international virtual water flows in relation to crop trade. Global environmental change, 15(1), pp.45-56. https://www.worldometers.info/world-population/indonesia-population/ Mohajerani, M., Mehrvar, M. and Ein-Mozaffari, F., 2009. An overview of the integration of advanced oxidation technologies and other processes for water and wastewater treatment. Int J Eng, 3(2), pp.120-46. Poyatos, J.M., Muio, M.M., Almecija, M.C., Torres, J.C., Hontoria, E. and Osorio, F., 2010. Advanced oxidation processes for wastewater treatment: state of the art. Water, Air, and Soil Pollution, 205(1-4), p.187. Radjenovi? et al., 2008. Membrane Bioreactor (MBR) as an Advanced Wastewater Treatment Technology. Handbook Env. Chem. Vol. 5 Part S/2: 37-101. Sheng, G.P., Yu, H.Q. and Li, X.Y., 2010. Extracellular polymeric substances (EPS) of microbial aggregates in biological wastewater treatment systems: a review. Biotechnology advances, 28(6), pp.882-894. Sheng, Z. and Liu, Y., 2011. Effects of silver nanoparticles on wastewater biofilms. Water research, 45(18), pp.6039-6050. Wang, L.K., Hung, Y.T. and Shammas, N.K. eds., 2005.psychology treatment processes (Vol. 3). Humana Press. Wang, L.K., Ivanov, V., Tay, J.H. and Hung, Y.T. eds., 2010. Environmental biotechnology (Vol. 10). Springer Science Business Media. Wang, L.K. and Pereira, N.C. eds., 1979. Handbook of environmental engineering (Vol. 4). Humana Press. Wang, L.K., Shammas, N.K. and Hung, Y.T. eds., 2010. Advanced biological treatment processes (Vol. 9). Springer Science Business Media. Wang, L.K., Shammas, N.K. and Hung, Y.T., 2007. Biosolids treatment processes. Humana Pr Inc. Wang, L.K., Shammas, N.K., Selke, W.A. and Aulenbach, D.B., 2007. Flotation thickening. Biosolids Treatment Processes, pp.71-100. Vesilind, P. ed., 2003. Wastewater treatment plant design (Vol. 2). IWA publishing.