A multihydrocyclone water pretreatment system to reduce suspended solids and the chemical oxygen demand

Jong Hwa SonBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)Correspondence[email protected]

Min HongBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)

Han Cheol YooBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)

Young Im KimBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)

Hea Do KimBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)

Ji Tae KimBlue BS Inc., Seoul National University, 154-42, Kwangsanro, Suwon-Si, Geonggi-do, 443-760, South Korea, Tel. +82 31 2013770 (J.H. Son)

Abstract

We experimentally demonstrated that a multihydrocyclone water pretreatment system consisting of three serially connected hydrocyclones reduced suspended solids, the chemical oxygen demand (COD), and the biological oxygen demand (BOD) in muddy seawater and sewage samples. The separation efficiency of the hydrocyclones asymptotically decreased in accordance with the number of hydrocyclone treatment steps. The difference in the variation in the separation efficiency of the samples was caused by variations in the particle density and the radius of the mud and sludge particles. The multihydrocyclone pretreatment system purified the muddy seawater and sewage at a uniform purification speed of about 500 ton/d. The results suggest that the multihydrocyclone system provides an effective environmentally friendly method water pretreatment system, without any chemical processes.

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Acknowledgment

This work was supported by the Korea Ministry of Environment under its “Global Top Project (Project No. GT-11-B-02-004-3).”

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A multihydrocyclone water pretreatment system to reduce suspended solids and the chemical oxygen demand

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A multihydrocyclone water pretreatment system to reduce suspended solids and the chemical oxygen demand

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