家当污水可生化性试验(国外英文资料).docVIP

工业污水可生化性实验(国外英文资料) Depleting the stored substances in order to achieve important life events, called endogenous breathing. (3) what is the effect of toxic and harmful substances on microorganisms? Answer: the microbes are toxic or inhibitory effect of material is more, can be roughly divided into heavy metal, cyanide, inorganic material such as H2S, halogen elements and compounds; Organic compounds such as phenol, alcohol, aldehydes and dyes. Heavy metal salts are the precipitants of protein, and their ions are easy to bind to the cellular proteins, causing them to change, or bind to the enzyme, the SH, to make the enzyme inactive. Organic compounds such as phenols, alcohols, aldehydes, and other organic compounds can make the biological proteins of the activated sludge degenerative or dehydrate the protein, damaging the cytoplasm and causing the microorganism to die. Toxic substances are also associated with pH, water temperature, dissolved oxygen, the presence of other toxic substances, and the number of microbes. 1000mL sludge dissolved oxygen data sheet T/min 0 0.5 one 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 Oxygen absorption measurement value 7.9 5.2 2.7 1.9 1.8 1.7 1.7 1.6 1.7 1.7 1.7 1.7 1.7 DO/dt 0.60 5.00 1.60 0.20 0.20 0.00 0.20 0.20 0.00 0.00 0.00 0.00 0.00 Ou 0.00 1.40 3.05 3.50 3.60 3.65 3.70 3.70 3.65 3.65 3.65 3.65 3.65 800mL sludge + 200mL water soluble oxygen data record T/min 0 0.5 one 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 Oxygen absorption measurement value 7.7 6.9 6.7 6.5 6.3 6.1 6.0 5.8 5.7 5.5 5.3 5.0 4.8 4.5 4.3 4.0 DO/dt 1.60 0.40 0.40 0.40 0.40 0.20 0.40 0.20 0.40 0.40 0.60 0.40 0.60 0.40 0.60 0.40 Ou 0.00 0.50 0.70 0.90 1.10 1.25 1.40 1.55 1.70 1.90 2.15 2.40 2.65 2.90 3.15 3.40 T/min 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 Oxygen absorption measurement value 3.8 3.5 3.2 3.0 2.7 2.5 2.3 2.0 1.9 1.9 1.8 1.9 1.9 1.9 1.9 DO/dt 0.60 0.60 0.40 0.60 0.40 0.40 0.60 0.20 0.00 0.20 0.20 0.00 0.00 0.00 0.00 Ou 3.65 3.95 4.20 4.45 4.