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2007•Journal of Beijing Technology and Business UniversityRequires access

LANDFILL LEACHATE TREATMENT BY A~2/O AND COAGULATION

Zhijun Li

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Abstract

Landfill leachate was treated by A2/O and coagulation.The CODCr and ammoina Nitrogen of leachate can be reduced from 5 900～7 600 mg/L to about 1 000 mg/L and 1 740～1 850 mg/L to a not-detected level respectively by A2/O technics.Concerning economic bebefit and CODCr removal efficiency,the composition and concentration of coagulation agent for treating effluent of bio-treatment are determined as Polyacryiamide 2 mg/L and Polyaluminium Chloride 1 000～1 200 mg/L.After coagulation,the CODCr of the effluent can reach 435 mg/L.

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What this paper is about

Landfill leachate was treated by A2/O and coagulation.The CODCr and ammoina Nitrogen of leachate can be reduced from 5 900～7 600 mg/L to about 1 000 mg/L and 1 740～1 850 mg/L to a not-detected level respectively by A2/O technics.Concerning economic bebefit and CODCr removal efficiency,the composition and concentration of coagulation agent for treating effluent of bio-treatment are determined as Polyacryiamide 2 mg/L and Polyaluminium Chloride 1 000～1 200 mg/L.After coagulation,the CODCr of the effluent can reach 435 mg/L.

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Available abstract

Landfill leachate was treated by A2/O and coagulation.The CODCr and ammoina Nitrogen of leachate can be reduced from 5 900～7 600 mg/L to about 1 000 mg/L and 1 740～1 850 mg/L to a not-detected level respectively by A2/O technics.Concerning economic bebefit and CODCr removal efficiency,the composition and concentration of coagulation agent for treating effluent of bio-treatment are determined as Polyacryiamide 2 mg/L and Polyaluminium Chloride 1 000～1 200 mg/L.After coagulation,the CODCr of the effluent can reach 435 mg/L.

Key concepts: Leachate, Effluent, Coagulation, Nitrogen, Chemistry, Chloride, Waste management, Environmental science

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