Daily Question 2015.10.29 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question)
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This post was last edited by Zhang Xiaopeng on 2015-10-29 at 08:50. The wastewater generated by a meat processing plant has a COD level of 1000 mg/L, SS levels of 800 mg/L, and ammonia nitrogen levels of 85 mg/L; the required COD level for the treated wastewater is…
B. Water intake—pre-treatment—UASB—contact oxidation—sedimentation and disinfection—discharge
C. Water intake—pre-treatment—aerated biological filter—SBR—settling and disinfection—discharge
UASB is suitable for treating high-concentration organic wastewater, which is generally defined as wastewater with a COD level of over 2000 mg/L. In this case, the COD of the incoming water is 1000 mg/L. Personally, I think it’s not necessary to use UASB
When faced with a question you don’t understand, it depends on luck – choose B
The wastewater generated by a meat processing plant contains 1000 mg/L of COD, 800 mg/L of SS, and 85 mg/L of ammonia nitrogen; the required COD level in the treated water is
B. Water intake—pre-treatment—UASB—contact oxidation—sedimentation and disinfection—discharge
B. Water intake—pre-treatment—UASB—contact oxidation—sedimentation and disinfection—discharge
The wastewater generated by a meat processing plant contains 1000 mg/L of COD, 800 mg/L of SS, and 85 mg/L of ammonia nitrogen; the required COD level in the treated water is
Answer: B. Water intake—pre-treatment—UASB—contact oxidation—sedimentation and disinfection—discharge. A combined anaerobic-aerobic process is generally used, with the anaerobic process unit usually located before the aerobic process unit. An anaerobic/anoxic/aerobic combination is used for nitrogen and phosphorus removal.