PMID- 33582409 OWN - NLM STAT- MEDLINE DCOM- 20210323 LR - 20221207 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 213 DP - 2021 Apr 15 TI - Removal effects of Myriophyllum aquaticum on combined pollutants of nutrients and heavy metals in simulated swine wastewater in summer. PG - 112032 LID - S0147-6513(21)00143-3 [pii] LID - 10.1016/j.ecoenv.2021.112032 [doi] AB - Swine wastewater (SW) treatment by Myriophyllum aquaticum is an important biotechnology for its resource utilization. However, some knowledge gaps remain in compound-pollutant removal in SW, especially in practical applications. To clarify the responses of M. aquaticum to the compound pollutants as well as the related operational parameters in SW treatment, three initial doses (0.5, 1.0, and 1.5 kg per pond in 150 L simulated SW) of M. aquaticum and a control (no plant; CK) were allocated to 12 ponds under a plastic roof in Nanjing city of Eastern China during 75 days in the summer of 2019. Results showed that M. aquaticum could be used as a pioneer plant to efficiently remove compounded pollutants of nitrogen (N), phosphorus (P), and especially for heavy metals in simulated SW. Compared with CK, M. aquaticum assisted in improving the total N, NH(4)(+)-N, NO(3)(-)-N, NO(2)(-)-N, and dissolved organic N by 30.1%, 100%, 100%, 97.6%, 20.2%, 39.8% whereas Cu, Zn, and Cd by 50.4%, 36.4% and 47.9% on average during the 75-day experiment in summer, respectively. Moreover, concentrations of Cu and Cd at day 75 were in the ranges of 1.92-2.82 and 0.64-1.47 g kg(-1) DW, respectively, exceeding the corresponding limits of the heavy-metal hyperaccumulator. For the operational parameters, the optimized initial dose was 1.0 kg per pond with M. aquaticum harvested after 45 summer days, respectively. Given that M. aquaticum has been widely used as animal feed in recent years and limit values for Cu and Zn in animal feed are not set in China, the toxicities of Cu and Zn should be assessed and the guideline of their limit values needs to be established for safe feed production. Interestingly, NH(4)(+)-N could dominate the removal of heavy metals especially Cd in the simulated SW, however, related mechanisms are needed for further study. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Cui, Jian AU - Cui J AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China; Farmland Irrigation Research Institute, CAAS/Key Laboratory of High-efficient and Safe Utilization of Agriculture Water Resources, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China. Electronic address: jcui@cnbg.net. FAU - Wang, Wei AU - Wang W AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. FAU - Li, Jinfeng AU - Li J AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. FAU - Du, Jinmeng AU - Du J AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; School of Water Conservancy and Environment, Chang'an University, Xi'an 710054, China. FAU - Chang, Yajun AU - Chang Y AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. FAU - Liu, Xiaojing AU - Liu X AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. FAU - Hu, Chao AU - Hu C AD - Farmland Irrigation Research Institute, CAAS/Key Laboratory of High-efficient and Safe Utilization of Agriculture Water Resources, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China. FAU - Cui, Jianwei AU - Cui J AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. FAU - Liu, Chong AU - Liu C AD - Faculty of Environmental Engineering, Changsha Environmental Protection Voctional College, Changsha 410004, China. FAU - Yao, Dongrui AU - Yao D AD - Institute of Botany, Jiangsu Province and Chinese Academy Sciences, Nanjing 210014, China; Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China. Electronic address: yaodongrui@cnbg.net. LA - eng PT - Journal Article DEP - 20210211 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Environmental Pollutants) RN - 0 (Metals, Heavy) RN - 0 (Waste Water) RN - 0 (Water Pollutants, Chemical) RN - 27YLU75U4W (Phosphorus) RN - N762921K75 (Nitrogen) SB - IM MH - Animals MH - China MH - Environmental Pollutants MH - Metals, Heavy/*analysis MH - Nitrogen/analysis MH - Nutrients MH - Phosphorus MH - Saxifragales/*physiology MH - Swine MH - Wastewater/*chemistry MH - Water Pollutants, Chemical/*analysis MH - Water Purification/methods OTO - NOTNLM OT - Combined pollutants OT - Heavy metals OT - Myriophyllum aquaticum OT - Summer OT - Swine wastewater EDAT- 2021/02/15 06:00 MHDA- 2021/03/24 06:00 CRDT- 2021/02/14 20:28 PHST- 2020/11/26 00:00 [received] PHST- 2021/01/27 00:00 [revised] PHST- 2021/02/02 00:00 [accepted] PHST- 2021/02/15 06:00 [pubmed] PHST- 2021/03/24 06:00 [medline] PHST- 2021/02/14 20:28 [entrez] AID - S0147-6513(21)00143-3 [pii] AID - 10.1016/j.ecoenv.2021.112032 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2021 Apr 15;213:112032. doi: 10.1016/j.ecoenv.2021.112032. Epub 2021 Feb 11.