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... from initial levels. During this same time period, a non-pretreated tank containing the same crudes had built up a 12-ft sludge layer (FIG. 2). The significant sludge reduction in the pretreated tank stabilized the desalter operation. At present, the refiner operates with a 3-in. emulsion interface ...
... from initial levels. During this same time period, a non-pretreated tank containing the same crudes had built up a 12-ft sludge layer (FIG. 2). The significant sludge reduction in the pretreated tank stabilized the desalter operation. At present, the refiner operates with a 3-in. emulsion interface ...
Minimizing Nitrogen Discharges from Onsite Wastewater Systems
... second denitrification process has been discovered, referred to as the anammox process, which stands for anaerobic ammonia oxidation. (Note: Anammox also refers to a trademarked ammonia removal technology developed in Europe that uses this process.) The anammox process represents a short cut in the ...
... second denitrification process has been discovered, referred to as the anammox process, which stands for anaerobic ammonia oxidation. (Note: Anammox also refers to a trademarked ammonia removal technology developed in Europe that uses this process.) The anammox process represents a short cut in the ...
Dragon Fruit Foliage Plant-Based Coagulant for Treatment of
... solution. It needs to be pointed out that the pH values in zeta experiments were the same as the pH of coagulant solution (0.5 g/L). In this study, the working solution was the distilled water. e data obtained were summarized in Figure 1. Zeta potential is a controlling parameter of charge neutrali ...
... solution. It needs to be pointed out that the pH values in zeta experiments were the same as the pH of coagulant solution (0.5 g/L). In this study, the working solution was the distilled water. e data obtained were summarized in Figure 1. Zeta potential is a controlling parameter of charge neutrali ...
KS3 Humanities Homework Project Geography: Ecosystem
... of both natural and manmade changes. Explain why people are changing the ecosystem. Research and describe the impacts of changes that are taking place in the ecosystem. Rank the changes according to which you consider to be the most serious. Explain how these changes can have impacts at a range of ...
... of both natural and manmade changes. Explain why people are changing the ecosystem. Research and describe the impacts of changes that are taking place in the ecosystem. Rank the changes according to which you consider to be the most serious. Explain how these changes can have impacts at a range of ...
CW-1 - City Of Beverly Hills
... b. When using waste stream reduction measures, the gross weight of the product is subtracted from a base weight of four (4) pounds per square foot of building area. This reduction is considered additional diversion and can be used in the waste reduction percentage calculations. 8. In the event that ...
... b. When using waste stream reduction measures, the gross weight of the product is subtracted from a base weight of four (4) pounds per square foot of building area. This reduction is considered additional diversion and can be used in the waste reduction percentage calculations. 8. In the event that ...
Bioremediation Technology
... A successful bioremediation experiment • The problem in Hanahan, South Carolina, in 1975, a massive leak from a military fuel storage facility released about 80,000 gallons of kerosinebased jet fuel. Immediate and extensive recovery measures managed to contain the spill, but could not prevent some f ...
... A successful bioremediation experiment • The problem in Hanahan, South Carolina, in 1975, a massive leak from a military fuel storage facility released about 80,000 gallons of kerosinebased jet fuel. Immediate and extensive recovery measures managed to contain the spill, but could not prevent some f ...
Secondary treatment
Secondary treatment is a treatment process for wastewater (or sewage) to achieve a certain degree of effluent quality by using a sewage treatment plant with physical phase separation to remove settleable solids and a biological process to remove dissolved and suspended organic compounds. After this kind of treatment, the wastewater may be called as secondary-treated wastewater.Secondary treatment is the portion of a sewage treatment sequence removing dissolved and colloidal compounds measured as biochemical oxygen demand (BOD). Secondary treatment is traditionally applied to the liquid portion of sewage after primary treatment has removed settleable solids and floating material. Secondary treatment is typically performed by indigenous, aquatic microorganisms in a managed aerobic habitat. Bacteria and protozoa consume biodegradable soluble organic contaminants (e.g. sugars, fats, and organic short-chain carbon molecules from human waste, food waste, soaps and detergent) while reproducing to form cells of biological solids. Biological oxidation processes are sensitive to temperature and, between 0 °C and 40 °C, the rate of biological reactions increase with temperature. Most surface aerated vessels operate at between 4 °C and 32 °C.