Slaughterhouse's Wastewater Treatment Plant

A 10 g of fresh soil in 100 mL conical flask was incubated under anaerobic condition with an addition of different solutions. The solutions consisted of 1 g/L of chloramphenicol for four treatments, 1) distilled water (Ctrl), 2) glucose of 300 mg C/L (+C), 3) KNO3 of 50 mg N/L (+N), and 4) glucose of 300 mg C/L + KNO3 of 50 mg N/L (+C+N). The flasks were evacuated and flushed four times with N2 to ensure anaerobic conditions, and acetylene (C2H2) gas was added to a final concentration of 10% (10 kPa) in the headspace. Gas was sampled after 24, 36 and 72 h using syringe and directly analysed for N2O concentration by chromatography with ECD. DEA were calculated from the linear increasing of N2O production against the

Environmental Protection Agency (EPA) described the general treatment of wastewater and its two basic stages, primary and secondary. In the primary treatment most solids are caught in a screen, then the sewage goes to a grit chamber to settle small pieces of debris at the bottom, then through the sedimentation tank. Afterwards, secondary treatment removes a majority of the organic matter, eventually being chlorinated before reaching an effluent (EPA, 1998).

The College Committee on Sustainability has already invested funds in producing and experimenting with these PHA fibrous mats to improve water quality. In a laboratory controlled environment, the PHA fibrous mat successfully denitrifies the water at a quick rate. From an incubation completed in the Keck Lab, the experimental fibrous mat of PHA is shown to be able to drop the nitrate levels in water to about one-fourth of the original concentration in less than 20 hours. Due to the success in a small scale lab experiment, there is a need for me to test the PHA fibrous mat in a large scale environment to successfully assess its denitrifying effectiveness. I propose that the most suitable large scale environment to test the PHA’s denitrification would be at the Crim Dell due to its low water quality levels and on-going nonpoint source pollution from college runoff.

The Buffalo Pound Water Treatment Plant is the prime source of water to the cities Regina and Moose Jaw. The City of Regina owns approximately 76% of the Plant while the City of Moose Jaw owns approximately 24%. The Buffalo Pound Water Treatment Plant provides water to

Factory farms cause a lot of waste in fact, a place called Delmarva Peninsula has 600 million chickens which together all create a whopping 400 tons of manure in a single year but that is nothing compared to the US’ crazy 61 million tons of animal waste alone in a year. That is 130 times the amount of human waste! According to the Environmental Protection Agency, hog, chicken and cow manure has polluted 35,000 miles of rivers in just twenty-two states! The amount of animals bred in Factory Farms will make these numbers rise dramatically too.

Addition reactions allow the reaction of two or more reactions to form into the adduct (the larger molecule formed). However, this only applies to compounds that have multiple bonds, for instance a double or triple bond. In this experiment, the reaction will be an addition of HBr to 1-hexene (an alkene). Both reactants are in reflux, which allows one to determine whether 1-bromohexane or 2-bromohexane is formed. In the reflux setup, 0.5 mL of 1-hexene, 2 mL of 48% HBr (aq), and 150 mg (0.15g) tetrabutylammonium bromide is added and then heated for two hours, along with stirring (using a spin vane).

Slaughter City defines the hardships of industrial workers in an abstracted reality. The Characters are representative of industrial workers throughout time expect the Sausage Man. The Sausage Man is the embodiment of universal evil, greed, gluttony, pride and lust. The Seamstress symbolizes the innocent victims; Cod the helpless bystanders controlled by evil; Maggot, Roach, and Brandon the abused workers; Tuck, the ideal administration and Baquin, the actual, self-serving administration. They are symbols calling attention to the horrific and tragic lives they represent. This sound design for Slaughter City enhances what each character represents and supports their identities.

Factory farming reduced the amount of land needed for meat production, however, these farms are a serious water pollutant. The waste of these animals ends up in the surrounding water and poses the constant threat of drinking water contamination. Runoff from factory farms and livestock grazing are one of the leading causes of pollution in rivers and lakes. The EPA notes that “bacteria and viruses can be carried by the runoff and that groundwater can be contaminated.” The huge quantities of animal waste runoff produced by these operations leech into the water supply and affect the natural aquatic life cycle. Livestock manure is rich in nitrogen, phosphorous, and other fertilizers. These chemicals eventually work their way into our stream, rivers

I am writing to express my interest in the position of Wastewater Treatment Program Leader at the Logan City Council – Water Business Section. Please find enclosed a copy of my résumé outlining how I meet the requirements of this position.

The second step of water treatment process is aeration. At the aerator, raw water is mixed with air. The aeration process helps to provide oxygen to the raw water which is needed for the oxidation process of dissolved iron and manganese in order for it to precipitate and therefore enables its removal through filtration (SAJ Holdings Sdn Bhd., n.d.). Wormleaton and Tsang (2000) stated that for water treatment process and also natural streams, it is essential to maintain a high amount of dissolved oxygen. Aeration also provides the escape of dissolved gases, such as carbon dioxide and hydrogen sulphide to reduce the corrosiveness of water, thus controls the tastes and odors of the water (Shun, 2007). Groundwater with high dissolved carbon dioxide levels or high concentrations of iron and manganese commonly require aeration as well as water drawn from reservoirs that is low in dissolved oxygen.

This report provides analysis and evaluation of a newly designed wastewater treatment facility for Sand Valley, Nevada. Analysis will include Biological Oxygen Demand (BOD) along with total, volatile, and fixed suspended solids. Methods for analysis will include the Winkler Test for BOD and a Hatch test for the suspend solids.

Today, the chemical waste disposal and treatment site takes up 5.7 million cubic yards and disposes of approximately 35 million tons of garbage a year, actions which neglect general health safety. According to the cerrell report, over ninety percent of the hazardous waste has been disposed in a potentially harmful manner which negatively impacts the environment and its people (Powell, 1984). Impacts on the environment include air pollution, groundwater pollution or depletion, and loss of landscape/aesthetic degradation. Health impacts include accidents, exposure to unknown or uncertain complex risks, such as radiation, and deaths. Other impacts that are being researched include birth malformations, current issue that is affecting large part of the population. Company officials have declared that the landfill is among the most heavily regulated and monitored facilities of its kind and is overseen by several federal agencies including the U.S. Environmental Protection Agency, the San Joaquin Valley Air Pollution Control District and the State Water Resources Control Board, each which concludes that the facility does not pose a risk to the community. Yet, it fails to report hazardous material spills to the general public who continues to consume and breathe these toxins (Sahagun, 2012). Within a fifteen month period, six children were born with serious birth defects, half which died from brain damage and cleft palates. Although the government has failed to see toxic waste as a

The new treatment plant will used an activated sludge process called the Modified Ludzack-Ettinger (MLE) Process, which consists of a continuous-flow suspended-growth process with an initial anoxic stage, followed by an aerobic stage; used to remove total nitrogen. During the study, the treatment scheme of the plant was as follows: a new head works building which includes an automatic screening, a grit chamber system, and pump station, followed by an odor control station, two Schreiber units (aeration basins/clarifiers that will be converted to anoxic tanks), two new aeration tanks (one currently in operation), four new clarifiers (two currently in operation), ultraviolet disinfection system, and a new post aeration system. At the time of the inspection, the sludge was treated in one aerobic digester tank, and then dewatered using a

In static sedimentation tests, a distinct sedimentation interface between the supernatant and sludge was observed for all samples with different irradiation doses, whereas the expected rapid improvement of the irradiated sedimentation rate was not observed (Fig. 1). These trends agreed with the results of Meeroff et al (2004). According to the sedimentation curves, there are two periods during static sedimentation process: (1) the initial hindered settling period, in which the interface between the supernatant and sludge decreases at a constant velocity (u0) relying on the sludge concentration; (2) the succedent sludge compression period, in which the settling velocity of the interface gradually declines (Wu et al., 2009; Iritani et al., 2015). For the untreated sludge, u0 is 10.36 mm·h−1 and SV720 is 37.1%, as shown in Fig. 2. For irradiated sludge, the sedimentation velocity was slightly increased to 11.55 mm·h-1 at doses up to 15 kGy. SV was continuously decreased with the increasing dose and a 19.4% reduction rate was achieved at 15 kGy. According to the Stokes Law, the observed changes in u0 and SV were probably due to particle size decrease and sludge density increase after irradiation (Yu et al., 2010). In addition, a portion of solid matter was dissolved by irradiation, which could promote SV decrease. The improved settleability demonstrated that

The disposal of untreated wastewater coming from the industries into the water bodies will pollute the water bodies because of its high concentrations. So, the wastewater produced from the industry should be treated properly to meet the permissible limits given by central and state pollution control boards. Therefore it is necessary to treat the wastewater properly with the help of an appropriate treatment plant. However, the treatment plant even though properly planned may not work satisfactory because of several reasons. Hence, it is essential to evaluate the treatment plant considering individual treatment unit in the entire treatment flow. In the present work emphasis has been given to the study of the performance of treatment facilities because of its importance in the conventional treatment of wastewater. Hence, the literature review related to the evaluation of the entire treatment process along with biological treatment process particularly suspended growth process Activated Sludge Process (ASP), attached growth process Trickling Filter (TF) and a combination of the both suspended and attached growth process Hybrid Reactor (HR) is presented in the following sections of this chapter.