Operational results show that the wastewater treatment technology of this kind to have high effectiveness and stable operation, the turbidity of outlet water being ≤5 NTU, COD_ Mn ≤4.5 mg/L, NH_3≤1 mg/L, meeting the requirements of makeup water for circulatory cooling water system in thermal power plant.
Though treating waste water containing Cr(VI),it can get to country standard when the initial concentration of Cr(VI) is 1 540 mg/L,Cr(VI) concentration still less than 0.5 mg/L for amount of treatment is 52 BV.The exchanging capacity is 80 mg/g.
The results indicate that when the pH value is 6-8, the adsorption time is 30min and the stirring rate is 160r/min, the rate of removing is more than 90%, which offers certain reference for treating wastewater by modified zeolite.
Though treating waste water containing Cr(VI),it can get to country standard when the initial concentration of Cr(VI) is 1 540 mg/L,Cr(VI) concentration still less than 0.5 mg/L for amount of treatment is 52 BV.The exchanging capacity is 80 mg/g.
The results indicate that when the pH value is 6-8, the adsorption time is 30min and the stirring rate is 160r/min, the rate of removing is more than 90%, which offers certain reference for treating wastewater by modified zeolite.
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.
Flow visualization and residence time distribution measurements were used to verify if the proposed procedure acceptably simulates UASB reactors treating wastewater.
Although pesticides and phenols, cause reproductive failure in many areas of the world, there is a no effective means of treating waste water containing these compounds.
One interesting alternative to the usual end-of-pipe processes for treating waste water produced during cheese-making involves its fermentation to sodium lactate.
Forty-three isolates of Gram-negative, mesophilic, non-spore-forming anaerobic cellulolytic bacteria were obtained from (i) an anaerobic reactor treating waste water from an integrated paper mill and (ii) an anaerobic sewage-sludge digestor.