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Treatment of high concentration coking wastewater with high solution bacteria

Hu Zhong

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Abstract

A new process for the treatment of high concentration coking wastewater which uses high solution bacteria(H.S.B) and oxic-anoxic-oxic(O-A-O) processing in a sequential batch reactor(SBR) is described.The process is based on the ability of H.S.B.to decompose organic matter.The oxic-bacteria and anoxic-bacteria in H.S.B.fulfill different functions in the oxic-SBR and anoxic-SBR steps. The results showed that the COD was reduced by 47% after coking wastewater with an initial COD of 7440?mg/L was treated for 6?h by oxic-SBR.COD reduction of the resulting effluent reached 78% after a second 24?h anoxic-SBR step.After a final 32?h oxic-SBR step,the COD of the effluent was 492?mg/L,representing a reduction of over 93%.The process provides a very economical and effective method of reducing COD.

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A new process for the treatment of high concentration coking wastewater which uses high solution bacteria(H.S.B) and oxic-anoxic-oxic(O-A-O) processing in a sequential batch reactor(SBR) is described.The process is based on the ability of H.S.B.to decompose organic matter.The oxic-bacteria and anoxic-bacteria in H.S.B.fulfill different functions in the oxic-SBR and anoxic-SBR steps. The results showed that the COD was reduced by 47% after coking wastewater with an initial COD of 7440?mg/L was treated for 6?h by oxic-SBR.COD reduction of the resulting effluent reached 78% after a second 24?h anoxic-SBR step.After a final 32?h oxic-SBR step,the COD of the effluent was 492?mg/L,representing a reduction of over 93%.The process provides a very economical and effective method of reducing COD.

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Available abstract

A new process for the treatment of high concentration coking wastewater which uses high solution bacteria(H.S.B) and oxic-anoxic-oxic(O-A-O) processing in a sequential batch reactor(SBR) is described.The process is based on the ability of H.S.B.to decompose organic matter.The oxic-bacteria and anoxic-bacteria in H.S.B.fulfill different functions in the oxic-SBR and anoxic-SBR steps. The results showed that the COD was reduced by 47% after coking wastewater with an initial COD of 7440?mg/L was treated for 6?h by oxic-SBR.COD reduction of the resulting effluent reached 78% after a second 24?h anoxic-SBR step.After a final 32?h oxic-SBR step,the COD of the effluent was 492?mg/L,representing a reduction of over 93%.The process provides a very economical and effective method of reducing COD.

Key concepts: Anoxic waters, Effluent, Wastewater, Chemistry, Pulp and paper industry, Bacteria, Environmental chemistry, Sewage treatment

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