It was found that when the treatment of wastewater containing anionic surfactants (LAC) was under the optimal conditions, i.e., electrodes interval of 2cm, treating voltage 8V, and the retention time of 40min,the removal rate of LAS, COD and TOC was over 94.5% ,66.2%,58.7% respectively.
While the BP neural network model after a dynamic training, it had a more precise prediction on the papermaking effluent treatment process with the average relative error of 1.9%, which indicates that the dynamic training BP neural network is greatly superior to the one without dynamic training.
The effluent treatment process was predicted with this BP neural network model with the average relative error of 19%, which indicates that the generalization power of the network is not so desirable.
Activated carbon was prepared from the sewage sludge of municipal wastewater treatment plant by chemical activation (activation reagent is ZnCl2) and was used for the adsorption of dye (reactive brilliant red K-2BP).
Great efforts have been made on water pollution control and a number of renovated technologies and processes for municipal wastewater treatment and reclamation as well as non-point pollution control have been developed and applied in China.
Long-term sampling and analysis were conducted in a domestic wastewater treatment plant for the investigation on the characteristics of the representative contaminants in raw sewage such as SS, COD, BOD5, TP, and TN.
Polar pollutants in the waste water of the Thessaloniki waste water treatment plant were qualitatively examined by substance-specific detection and identification methods.
From anaerobic digestor sludge of a waste water treatment plant, a gram-negative, strictly anaerobic sulfate-reducing bacterium was isolated with acetone as sole organic substrate.
Procedure for treatment of wastewater with a coagulant (aluminum sulfate) and anionic flocculants to remove fats and proteins was studied The purification efficiency was evaluated from the flocculation parameters.
Decolorisation of azo dyes during biological effluent treatment can involve both adsorption to cell biomass and degradation by azo-bond reduction during anaerobic digestion.
废水处理
wastewater treatment
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