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
People who are involved in managing wastewater treatment face the challenge of achieving conservation goals with limited funds, and also of balancing needs for nature conservation. This context has been motivated with...People who are involved in managing wastewater treatment face the challenge of achieving conservation goals with limited funds, and also of balancing needs for nature conservation. This context has been motivated with finding logic explanations of wastewater treatment by oxidation ponds. Description of progressive we have made with developing methods is for understanding how, when and where had done to apply the oxidation ponds for protecting biodiversity. The Rashid oxidation pond facility was highlighted as a model plant for utilizing this technology in wastewater treatment in the city of Rashid, El-Beheira Governorate, Egypt. The main concept is based on the interaction of chemical pollutants NO<sub>2</sub>, NO<sub>3</sub>, BOD<sub>5</sub>-in, and BOD<sub>5</sub>-out and heavy metals with microorganisms as Chlorophyta Green and cyanophyta, and how these oxidation ponds imitate the Continuous Chemical Reactor (CSTR) to build its core architecture for maximum usefulness. By applying the theoretical equation of (CSTR) on the experimental results of the oxidation pond according to Thirumurthi equation, it was discovered that (CSTR) and oxidation pond are matching together with a satisfactory ratio of congruence (85% - 88%). Also, the heavy metals as (iron, Zinc and copper) are high percentage removal by the algae rules. This investigation established that the oxidation ponds may function as a Continuous Chemical Reactor under ultimate conditions and precautions.展开更多
An engineering technology for the comprehensive treatments of sewage sludge and mine wastewater in smal town was introduced. As fil ing materials, gangue to fil in the col apse basin, construction waste, household ref...An engineering technology for the comprehensive treatments of sewage sludge and mine wastewater in smal town was introduced. As fil ing materials, gangue to fil in the col apse basin, construction waste, household refuse and ex-cess sludge as wel as clay were mixed with water into organic fil ing soil, turning the waste sludge into useful soil matrix, which solved the difficulties in growing plants in the reclaimed land that lack of organic soil. The col apse basin was de-signed into oxidation pond, wetland and land infiltration system to treat industrial wastewater and domestic wastewater, realizing the up-to-standard release after sewage treatment.展开更多
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.
文摘People who are involved in managing wastewater treatment face the challenge of achieving conservation goals with limited funds, and also of balancing needs for nature conservation. This context has been motivated with finding logic explanations of wastewater treatment by oxidation ponds. Description of progressive we have made with developing methods is for understanding how, when and where had done to apply the oxidation ponds for protecting biodiversity. The Rashid oxidation pond facility was highlighted as a model plant for utilizing this technology in wastewater treatment in the city of Rashid, El-Beheira Governorate, Egypt. The main concept is based on the interaction of chemical pollutants NO<sub>2</sub>, NO<sub>3</sub>, BOD<sub>5</sub>-in, and BOD<sub>5</sub>-out and heavy metals with microorganisms as Chlorophyta Green and cyanophyta, and how these oxidation ponds imitate the Continuous Chemical Reactor (CSTR) to build its core architecture for maximum usefulness. By applying the theoretical equation of (CSTR) on the experimental results of the oxidation pond according to Thirumurthi equation, it was discovered that (CSTR) and oxidation pond are matching together with a satisfactory ratio of congruence (85% - 88%). Also, the heavy metals as (iron, Zinc and copper) are high percentage removal by the algae rules. This investigation established that the oxidation ponds may function as a Continuous Chemical Reactor under ultimate conditions and precautions.
基金Supported by the National Natural Science Foundation of China(51208068)~~
文摘An engineering technology for the comprehensive treatments of sewage sludge and mine wastewater in smal town was introduced. As fil ing materials, gangue to fil in the col apse basin, construction waste, household refuse and ex-cess sludge as wel as clay were mixed with water into organic fil ing soil, turning the waste sludge into useful soil matrix, which solved the difficulties in growing plants in the reclaimed land that lack of organic soil. The col apse basin was de-signed into oxidation pond, wetland and land infiltration system to treat industrial wastewater and domestic wastewater, realizing the up-to-standard release after sewage treatment.
