文献类型：期刊文献

英文题名：Recovery and removal of nutrients from swine wastewater by using a novel integrated reactor for struvite decomposition and recycling

作者：Huang, Haiming Xiao, Dean Liu, Jiahui Hou, Li Ding, Li

第一作者：Huang, Haiming

通信作者：Huang, HM[1]

机构：[1]Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China;[2]Guizhou Inst Technol, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China

第一机构：Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China

通信机构：corresponding author), Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China.

年份：2015

卷号：5

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-84929190910);WOS:【SCI-EXPANDED(收录号:WOS:000354275400002)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 51408529), the Natural Science Foundation of Hebei Province (Grant Nos. E2014203080 and B2012203005), and the Outstanding Young Scholars Project of Colleges and Universities of Hebei province (Grant No. BJ2014059).

语种：英文

摘要：In the present study, struvite decomposition was performed by air stripping for ammonia release and a novel integrated reactor was designed for the simultaneous removal and recovery of total ammonia-nitrogen (TAN) and total orthophosphate (P-T) from swine wastewater by internal struvite recycling. Decomposition of struvite by air stripping was found to be feasible. Without supplementation with additional magnesium and phosphate sources, the removal ratio of TAN from synthetic wastewater was maintained at >80% by recycling of the struvite decomposition product formed under optimal conditions, six times. Continuous operation of the integrated reactor indicated that approximately 91% TAN and 97% P-T in the swine wastewater could be removed and recovered by the proposed recycling process with the supplementation of bittern. Economic evaluation of the proposed system showed that struvite precipitation cost can be saved by approximately 54% by adopting the proposed recycling process in comparison with no recycling method.