Optimum doses of Mg and P salts for precipitating ammonia into struvite crystals in aerobic composting

Bioresource Technology
Yeon-Koo Jeong, Sun-Jin Hwang

Abstract

It was previously reported that struvite crystals could be formed in the aerobic composting reaction provided that Mg and P salts are added [Bioresource Technology 79 (2001) 129]. The formation of struvite crystals significantly reduced gaseous loss of ammonia and resulted in substantial increase in the ammonia content in the compost, attaining 1.5%. In this context, the present study was conducted to determine the optimal doses of Mg and P salts for struvite crystallization. It was found that cumulative ammonia production was about 33-36% of the initial total nitrogen in the aerobic composting reaction, irrespective of the amounts of Mg and P salts added. The theoretical doses for complete conversion of ammonia into struvite crystals seemed to be about 33-36% of the initial nitrogen. The addition of Mg and P salts at this level, however, caused adverse effects on the degradation of organic materials. Therefore, it was concluded that the optimal doses of Mg and P salts should be about 20% of the initial nitrogen in the compost mixture not to cause any harmful effects on the composting reaction.

References

Aug 2, 2001·Bioresource Technology·Y K Jeong, J S Kim
Apr 20, 2004·Environmental Pollution·S M Tiquia, N F Tam

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Citations

Aug 20, 2011·Journal of the Air & Waste Management Association·Yu LiGuohe Huang
Dec 2, 2008·Bioresource Technology·Hui Yu, Guo H Huang
Nov 23, 2015·Bioresource Technology·Man Ting ChanJonathan W C Wong
Oct 8, 2009·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Li-Mei Ren Lu Peng
Feb 5, 2015·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Yunbei Li, Weiguang Li
Feb 5, 2019·Environmental Science and Pollution Research International·Jishao JiangYunbei Li
Mar 1, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Sheng LiHui Yu
May 28, 2020·Environmental Science and Pollution Research International·Luana G SardáHugo M Soares
Mar 1, 2019·Environmental Science and Pollution Research International·Juan WuYan Liu
Apr 19, 2020·Environmental Science and Pollution Research International·Karolina BarčauskaitėRomas Mažeika
Feb 2, 2010·Water Environment Research : a Research Publication of the Water Environment Federation·Tianxi ZhangShulin Chen
Feb 27, 2021·Applied Biochemistry and Biotechnology·Jayanta AndraskarAtya Kapley
Jul 25, 2017·Bioresource Technology·Shuguang Wang, Yang Zeng

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