Calcium self-release bioremediation system combined with microbially induced calcium precipitation for the removal of ammonium nitrogen, phosphorus and heavy metals
{"title":"Calcium self-release bioremediation system combined with microbially induced calcium precipitation for the removal of ammonium nitrogen, phosphorus and heavy metals","authors":"","doi":"10.1016/j.jece.2024.114190","DOIUrl":null,"url":null,"abstract":"<div><p>Natural landscape water and substrate were taken to simulate the release of substrate pollutants in micropolluted water bodies, and a calcium silicate- sodium alginate (CS-SA) bioremediation system was constructed. The removal of ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), total nitrogen (TN) and Phosphate (PO<sub>4</sub><sup>3-</sup>-P) were 99.14 %, 98.90 % and 84.44 %, respectively. The Ca<sup>2+</sup> continuously released by CS-SA provided good microbial-induced calcium precipitation (MICP) conditions for <em>Acinetobacter calcoaceticus</em> strain HM12, and the removal efficiency of both Zn<sup>2+</sup> and Cd<sup>2+</sup> was 100 %, and the pH after remediation was consistent with that of natural water bodies. NH<sub>4</sub><sup>+</sup>-N was removed by heterotrophic nitrification- aerobic denitrification (HN-AD) of strain HM12, and heavy metals and phosphorus were removed by co-precipitation and adsorption by MICP. High-throughput sequencing results showed that strain HM12 was effective as a bioinoculant for the remediation of the aquatic environment. The construction and operation of this bioremediation system provided a method for micropolluted water treatment and recovery of phosphorus and heavy metals.</p></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":7.4000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Environmental Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213343724023212","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Natural landscape water and substrate were taken to simulate the release of substrate pollutants in micropolluted water bodies, and a calcium silicate- sodium alginate (CS-SA) bioremediation system was constructed. The removal of ammonium nitrogen (NH4+-N), total nitrogen (TN) and Phosphate (PO43--P) were 99.14 %, 98.90 % and 84.44 %, respectively. The Ca2+ continuously released by CS-SA provided good microbial-induced calcium precipitation (MICP) conditions for Acinetobacter calcoaceticus strain HM12, and the removal efficiency of both Zn2+ and Cd2+ was 100 %, and the pH after remediation was consistent with that of natural water bodies. NH4+-N was removed by heterotrophic nitrification- aerobic denitrification (HN-AD) of strain HM12, and heavy metals and phosphorus were removed by co-precipitation and adsorption by MICP. High-throughput sequencing results showed that strain HM12 was effective as a bioinoculant for the remediation of the aquatic environment. The construction and operation of this bioremediation system provided a method for micropolluted water treatment and recovery of phosphorus and heavy metals.
期刊介绍:
The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.