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Study on pretreatment of quinacridinone pigment wastewater by coagulation technology

Fei Ma

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Abstract

In the experimental the joint effect of inorganic coagulant and organic coagulant aid are utilized to pretreat the Quinacridinone pigment wastewater.After selection of the coagulant,aluminum sulfate and PAM are the best coagulants.When the dosage of aluminum sulfate is 150～250 mg·L1,the dosage of PAM is 5 mg·L-1,pH is 4～6,the removal ratio of COD and chroma are above 40% and 70%,the effluent is transparent.

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What this paper is about

In the experimental the joint effect of inorganic coagulant and organic coagulant aid are utilized to pretreat the Quinacridinone pigment wastewater.After selection of the coagulant,aluminum sulfate and PAM are the best coagulants.When the dosage of aluminum sulfate is 150～250 mg·L1,the dosage of PAM is 5 mg·L-1,pH is 4～6,the removal ratio of COD and chroma are above 40% and 70%,the effluent is transparent.

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Available abstract

In the experimental the joint effect of inorganic coagulant and organic coagulant aid are utilized to pretreat the Quinacridinone pigment wastewater.After selection of the coagulant,aluminum sulfate and PAM are the best coagulants.When the dosage of aluminum sulfate is 150～250 mg·L1,the dosage of PAM is 5 mg·L-1,pH is 4～6,the removal ratio of COD and chroma are above 40% and 70%,the effluent is transparent.

Key concepts: Effluent, Coagulation, Chemistry, Sulfate, Wastewater, Pigment, Flocculation, Chromatography

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