A synthetic biological pond composed of aquatic plants, a microorganism and aquatic animals was applied in the purification of the wastewater discharged from a Tnonyx sinensis breeding greenhouse, and the removal effe...A synthetic biological pond composed of aquatic plants, a microorganism and aquatic animals was applied in the purification of the wastewater discharged from a Tnonyx sinensis breeding greenhouse, and the removal effects of TN, NH4＋ -N, TP and COD in the wastewater were analyzed. The results show that after the breeding wastewater was purified by the synthetic biological pond for about five months, TN, NH~ -N, TP and COD concentration in the breeding wastewater were reduced by 78%, 92%, 81% and 60% respectively, while DO content in the breeding wastewater increased by about four times, and there was no obvious change in water pH; previous yellow or brown and turbid sewage became yel- lowish and slightly turbid, and it had no smell. It is obviously seen that the purification effect of T. sinensis breeding wastewater by the synthetic biological pond composed of aquatic plants, a microorganism and aquatic animals is obvious, and the synthetic biological pond has good promotion and application prospects.展开更多
The feasibility of an inexpensive wastewater treatment system is evaluated in this study.The experiment was conducted in 3 phases with different treatment combinations for testing theirpurification efficiencies. The p...The feasibility of an inexpensive wastewater treatment system is evaluated in this study.The experiment was conducted in 3 phases with different treatment combinations for testing theirpurification efficiencies. The pond system was divided into 3 functional regions: influentpurification, efficient upgrading and multi-utilization. Various kinds of aquatic organisms, wereeffectively cooperated in this system. The system attained high reduction of BOD_5, COD, TSS, TN,TP and other pollutants. The mutagenic effect and number of bacteria and virus significantly de-clined during the process of purifieation. After the wastewater flowed through the upgrading zone,the concentrations of pollutants and algae evidently decreased. Plant harvesting did not yield drama-tic effects on reductions of the main pollutants, through it did affect remarkably the biomassproductivity of the macrophytes. The wastewater was reclaimed for various purposes.展开更多
By making the use of the processes which includes separating trash and solid materials from the wastewater-ammonia stripping tower-UASB-biological oxidation pond, we have treated the wastewater which comes from the sw...By making the use of the processes which includes separating trash and solid materials from the wastewater-ammonia stripping tower-UASB-biological oxidation pond, we have treated the wastewater which comes from the swine factory. The treated wastewater can meet the primary standard of The People＇s Republic of China based on sewage discharge standards and the wastewater treatment project design contract （GBl8596-2001）, and the effluent will be used as irrigation-water. We introduce this project including the quality of influent and effluent and the flow scheme, the statement of every part, the investment and the effect, etc. The operation indicated that this process has many merits such as the stability in operation-effect and the convenience in management. So it will provide some help for the similar wastewater treatment.展开更多
基金Supported by the Project of Public Welfare Application Research from Huzhou Science and Technology Bureau(2013C102070)
文摘A synthetic biological pond composed of aquatic plants, a microorganism and aquatic animals was applied in the purification of the wastewater discharged from a Tnonyx sinensis breeding greenhouse, and the removal effects of TN, NH4＋ -N, TP and COD in the wastewater were analyzed. The results show that after the breeding wastewater was purified by the synthetic biological pond for about five months, TN, NH~ -N, TP and COD concentration in the breeding wastewater were reduced by 78%, 92%, 81% and 60% respectively, while DO content in the breeding wastewater increased by about four times, and there was no obvious change in water pH; previous yellow or brown and turbid sewage became yel- lowish and slightly turbid, and it had no smell. It is obviously seen that the purification effect of T. sinensis breeding wastewater by the synthetic biological pond composed of aquatic plants, a microorganism and aquatic animals is obvious, and the synthetic biological pond has good promotion and application prospects.
文摘The feasibility of an inexpensive wastewater treatment system is evaluated in this study.The experiment was conducted in 3 phases with different treatment combinations for testing theirpurification efficiencies. The pond system was divided into 3 functional regions: influentpurification, efficient upgrading and multi-utilization. Various kinds of aquatic organisms, wereeffectively cooperated in this system. The system attained high reduction of BOD_5, COD, TSS, TN,TP and other pollutants. The mutagenic effect and number of bacteria and virus significantly de-clined during the process of purifieation. After the wastewater flowed through the upgrading zone,the concentrations of pollutants and algae evidently decreased. Plant harvesting did not yield drama-tic effects on reductions of the main pollutants, through it did affect remarkably the biomassproductivity of the macrophytes. The wastewater was reclaimed for various purposes.
文摘By making the use of the processes which includes separating trash and solid materials from the wastewater-ammonia stripping tower-UASB-biological oxidation pond, we have treated the wastewater which comes from the swine factory. The treated wastewater can meet the primary standard of The People＇s Republic of China based on sewage discharge standards and the wastewater treatment project design contract （GBl8596-2001）, and the effluent will be used as irrigation-water. We introduce this project including the quality of influent and effluent and the flow scheme, the statement of every part, the investment and the effect, etc. The operation indicated that this process has many merits such as the stability in operation-effect and the convenience in management. So it will provide some help for the similar wastewater treatment.
