4.7 Article

Greywater disinfection with the environmentally friendly Hydrogen Peroxide Plus (HPP)

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CHEMOSPHERE
卷 78, 期 1, 页码 61-65

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2009.09.067

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Waste water reuse; Stabilized-H2O2; Fecal coliforms; Somatic coliphages; Landscape irrigation

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Hydrogen Peroxide Plus (HPP) is a newly developed, stabilized-H2O2-based compound. This study was aimed at determining the disinfection efficiency of HPP in greywater (GW), assessing HPP dose requirements and evaluating the feasibility of its use in small-scale GW-treatment systems. Fecal coliforms were the most sensitive to treatment, followed by somatic coliphages and F+ bacteriophages. The calculated HPP dose required to reduce fecal coliform counts by 99% was 125 mg H2O2 L-1, with a contact time of 35 min. The use of HPP was found feasible and comparable to the use of chlorine for small systems with a flow rate of 5 m(3) d(-1). HPP is suggested as an alternative for GW disinfection in small communities and private houses. (C) 2009 Elsevier Ltd. All rights reserved.

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