【摘 要】
：
The pilot-scale experimental apparatus and the procedure of the chemical and biological flocculation process to verify the feasibility in treating Shanghai muni
【机 构】
：
State Key Laboratory of Pollution Control and Resource Reuse
论文部分内容阅读
The pilot-scale experimental apparatus and the procedure of the chemical and biological flocculation process to verify the feasibility in treating Shanghai municipal sewage were introduced in this paper. In addition, the biological function of the process was discussed. The results of optimal running showed that in the reaction tank, the concentration of mixed liquor suspended solid(MLSS) was2 g/L, hydraulic retention time(HRT) was 35 min, dosage of liquid polyaluminium chloride(PAC) was 60 mg/L, and the concentration of polyacrylamide(PAM) was 0.5 mg/L. The effluent average concentrations of CODcr, TP, SS and BOD5 were 50 mg/L, 0.62 mg/L, 18mg/L, and 17 mg/L, respectively. These were better than the designed demand. In addition, the existence of biological degradation in this system was proven by several methods. The removal efficiencies of the chemical and biological flocculation process were 20% higher than that of the chemical flocculation process above at the same coagulant dosage. The treatment process under different situations was evaluated on a pilot-scale experiment, and the results provided magnificent parameters and optimal condition for future operation of the plant.
其他文献
A series of oxygen-deficient perovskite-supported palladium catalysts were prepared by the "solid phase crystallization"(spc)method and investigated with XRD, T
In this paper the global attractivity of the nonlinear difference equationis investigated, where a,b, A ∈ (0, ∞), k is an positive integer and the initial con
Temporal changes of dominant microbial populations in groundwater in response to the leachate from Shanghai Laogang Landfill were investigated. Concentrations o
Plasma methane (CH4) conversion in gliding arc discharge was examined. The result data of experiments regarding the performance of gliding arc discharge were pr
Municipal solid waste(refuse) landfill stabilizes as the refuse degrades. After years of biodegradation, the refuse in the landfill becomes stabilized and aged,
Horizontal and vertical variations of daily average CO2 concentration above the wetland surface were studied in Xianghai National Nature Reserve of China in Aug
The hazardous organic pollutants generated from coal gasification, such as polycyclic aromatic hydrocarbons(PAHs), are highly mutagenic and carcinogenic. More r
Extracts of 21 marine invertebrates belonging to Coelenterata, Mollusca, Annelida, Bryozoa,Echiura, Arthropoda, Echinodermata and Urochordata were screened for
Although polychlorinated biphenyls(PCBs) are globally recognized pollutant, an understanding of their resources as by-products in chemical industry is poorly in
The chemical and physical properties of nitrogen and phosphorus as well as their concentrations in the overlying water, pore-water and sediments in Huainan segm