Research on The Ozone and Electromagnetic Cotreatment Technology of Papermaking Wastewater

DOI

10.2991/iceep-18.2018.216How to use a DOI?

Keywords

papermaking wastewater, ozone, electromagnetic technology, cotreatment

Abstract

In this paper, ozone-electromagnetic technique was used to treat papermaking wastewater. It was found that the value of COD, BOD, TOC, SS , AN(Ammonia Nitrogen) and CHR(Chromaticity) of wastewater treated with the specially designed ozone sewage treatment unit decreased from 2660mg/L, 1165mg/L, 1962mg/L, 707g/L, 112mg/L and 120 times to 782mg/L, 118mg/L, 684mg/L, 112g/L, 16mg/L and 50 times respectively. The values were reduced by 71%, 90%, 65%, 84%, 86% and 58% respectively. The EC(Electrical Conductivity) increased by 2.1% slightly from 2800Ω-1•cm-1 to 2860Ω-1•cm-1. Subsequently, the treatment of papermaking wastewater was continued with graphite electromagnetic device.The results shown that the optimal treatment conditions were as follows: voltage 9.2 V, current 1.72 A, number of graphite plates in series 10, plate distance 3.24 mm, treatment time 25 min. Under these conditions, the value of COD, TOC, BOD, SS, AN, EC and CHR of papermaking wastewater can be reduced to 89mg/L, 71mg/L, 53mg/L, 33g/L, 8mg/L, 68Ω-1•cm-1 and 12times, the removal rates are 97%，94%，97%，95%，93%，98%，90% respectively. By using the ozone system and electromagnetic equipment, the paper-making wastewater has achieved good results, which creates favorable conditions for wastewater reuse and zero discharge.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhengshun Wang
AU  - Mingchao Chi
AU  - Kaitai Yao
AU  - Baiman An
AU  - Zhihao Wang
AU  - Xianhao Wang
PY  - 2018/09
DA  - 2018/09
TI  - Research on The Ozone and Electromagnetic Cotreatment Technology of Papermaking Wastewater
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 1222
EP  - 1229
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.216
DO  - 10.2991/iceep-18.2018.216
ID  - Wang2018/09
ER  -