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| Phosphate Inhibition for Calcification of Anaerobic Granule Sludge in Waste Paper Pulping Wastewater |
| Received:May 01, 2021 |
| DOI：10.11981/j.issn.1000-6842.2021.03.61 |
| Key Words:granule sludge;phosphates;waste paper pulping;calcification |
| Fund Project:国家自然科学基金委员会（21868004）；广西重点研发计划项目（桂科AB19259013）；广西自然科学基金（2019GXNSFAA185019）；广西大学研究生院博世科分院项目（GXU-BFY-2020-020）。 |
| Author Name | Affiliation | Postcode | | ZHANG Jian | Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | PAN Jiqi | Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | LIU Xi | Guangxi Bossco Environmental Protection Technology Co.， Ltd.， Nanning， Guangxi Zhuang Autonomous Region， 530007 | 530007 | | LIAN Hua | Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | CHEN Guoning | Guangxi Bossco Environmental Protection Technology Co.， Ltd.， Nanning， Guangxi Zhuang Autonomous Region， 530007 | 530007 | | WANG Zhiwei | Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | WEI Tianhui | Guangxi Bossco Environmental Protection Technology Co.， Ltd.， Nanning， Guangxi Zhuang Autonomous Region， 530007 | 530007 | | WANG Shuangfei | Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 |
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| Abstract: |
| The phosphate—the nutrient in wastewater treatment， was used to block calcification in this study. The ability of phosphate in lattice deformation and surface corrosion were explored and the feasibility of phosphate inhibition for calcification in anaerobic reactor was tested in industrial scale. The results showed that calcium retention rate in the anaerobic reactor can be reduced from 38% to <8% with the addition of phosphate into the pre-acidification tank. In this way， calcified sludge replacement and alkali-precipitation calcium removal which would cause production of unnecessary chemicals and destruction of sludge structure would be avoided by retrofitting the nutrient supply strategy in wastewater treatment. Therefore， the proposed phosphate inhibition for calcification would provide an eco-tech feasible solution for waste paper pulping enterprises. |
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