Title: The method of general heat treatment of waste water from metal manufacture based on photocatalysis

Authors: Ning Qiu

Addresses: Qingdao Technological University Qindao College, No. 79, Tieqishan Road, Chengyang District, Qingdao 266106, China

Abstract: Photocatalytic treatment of emulsified waste liquid after pre-treatment is carried out, using TiO₂ as catalyst. The influence of crystal structure, particle size, amount of the catalyst and initial pH value on the removal ratio of the chemical oxygen demand (COD) is studied in this essay. The results show that in the conditions that 0.5% quality point, P25-1 photocatalyst, 6.5 pH value and 90 min processing, the treatment effect is most ideal.

Keywords: heat treatment cleaning; emulsion; photocatalysis; post-treatment.

DOI: 10.1504/IJEP.2019.104516

International Journal of Environment and Pollution, 2019 Vol.66 No.1/2/3, pp.117 - 126

Received: 09 Jan 2018
Accepted: 29 Sep 2018
Published online: 17 Jan 2020 *

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