ScholarLens Back to search
2008•Industrial Safety and Environmental ProtectionRequires access

Study on Treatment for Dyeing Wastewater by Iron-carbon Micro-electrolysis and A/O Process

HE Lian-yu

Open publisher page 2 citations

Abstract

Iron-carbon micro-electrolysis and A/O process is used to treat the dyeing wastewater and the factors influencing the treatment efficiency of micro-electrolysis as well as the conditions of A/O are also studied.The results show that the optimal initial pH,flocculation pH and Fe/C ratio should be 3,7.5 and 1∶1.1 respectively,with reaction time 30 mins in the process,as a result,the ratio of BOD5/COD of the pretreated dyeing wastewater is raised from 0.19 to 0.37;Temperature is adjusted to 35-40℃,pH to 6.5-7 as well as the HRT is 8 hours and 20 hours in anaerobic and oxic reaction tanks respectively.The removal rate of COD and chromaticity can reach 90% and 95% respectively and the effluent can reach the national Sewage Synthesis Emissions Standard(GB8978-1996,grade 1).

About this research paper

What this paper is about

Iron-carbon micro-electrolysis and A/O process is used to treat the dyeing wastewater and the factors influencing the treatment efficiency of micro-electrolysis as well as the conditions of A/O are also studied.The results show that the optimal initial pH,flocculation pH and Fe/C ratio should be 3,7.5 and 1∶1.1 respectively,with reaction time 30 mins in the process,as a result,the ratio of BOD5/COD of the pretreated dyeing wastewater is raised from 0.19 to 0.37;Temperature is adjusted to 35-40℃,pH to 6.5-7 as well as the HRT is 8 hours and 20 hours in anaerobic and oxic reaction tanks respectively.The removal rate of COD and chromaticity can reach 90% and 95% respectively and the effluent can reach the national Sewage Synthesis Emissions Standard(GB8978-1996,grade 1).

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Iron-carbon micro-electrolysis and A/O process is used to treat the dyeing wastewater and the factors influencing the treatment efficiency of micro-electrolysis as well as the conditions of A/O are also studied.The results show that the optimal initial pH,flocculation pH and Fe/C ratio should be 3,7.5 and 1∶1.1 respectively,with reaction time 30 mins in the process,as a result,the ratio of BOD5/COD of the pretreated dyeing wastewater is raised from 0.19 to 0.37;Temperature is adjusted to 35-40℃,pH to 6.5-7 as well as the HRT is 8 hours and 20 hours in anaerobic and oxic reaction tanks respectively.The removal rate of COD and chromaticity can reach 90% and 95% respectively and the effluent can reach the national Sewage Synthesis Emissions Standard(GB8978-1996,grade 1).

Key concepts: Electrolysis, Effluent, Wastewater, Pulp and paper industry, Chemistry, Sewage treatment, Electrolytic process, Waste management

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Study on Treatment for Dyeing Wastewater by Iron-carbon Micro-electrolysis and A/O Process — Research Paper | ScholarLens