5 results match your criteria: "Changchun Gold Research Institute Co.[Affiliation]"
Harmless treatment of cyanide tailings by functional bacteria: Degradation of cyanide and the secondary pollutant ammonia nitrogen.
J Hazard Mater
December 2024
Changchun Gold Research Institute Co., Ltd., Changchun 130012, China.
The eco-friendly treatment of cyanide tailings (CT) using microorganisms is a cost-effective and promising technology. However, this process often generates the secondary pollutants, such as ammonia nitrogen (NH-N), which can adversely impacts the surrounding environment. The accumulation of NH-N is also toxic to cyanide-degrading microorganisms, presenting a significant challenge in achieving simultaneous cyanide degradation and NH₄⁺-N mitigation.
View Article and Find Full Text PDFA biodegradable chitosan-based polymer for sustained nutrient release to stimulate groundwater hydrocarbon-degrading microflora.
Chemosphere
December 2023
Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China; Institute of Water Resources and Environment, Jilin University, Changchun 130021,China.
Petroleum hydrocarbon-contaminated groundwater often has a low indigenous microorganism population and lacks the necessary nutrient substrates for biodegradation reaction, resulting in a weak natural remediation ability within the groundwater ecosystem. In this paper, we utilized the principle of petroleum hydrocarbon degradation by microorganisms to identify effective nutrients (NaHPO, KHPO, NHNO, CaCl, MgSO·7HO, FeSO·7HO, and VB) and optimize nutrient substrate allocation through a combination of actual surveys of petroleum hydrocarbon-contaminated sites and microcosm experiments. Building on this, combining biostimulation and controlled-release technology, we developed a biodegradable chitosan-based encapsulated targeted biostimulant (i.
View Article and Find Full Text PDFNatural polysaccharide polymer network for sustained nutrient release to stimulate the activity of aromatic hydrocarbon-degrading indigenous microflora present in groundwater.
Sci Total Environ
September 2023
Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China; College of New Energy and Environment, Jilin University, Changchun 130021, People's Republic of China; Institute of Water Resources and Environment, Jilin University, Changchun 130021, People's Republic of China.
Article Synopsis
- * The study developed a polysaccharide-based encapsulated bionutrient (SA-H-CS) that promotes the growth of indigenous microorganisms, thereby improving the degradation rate of AHs like naphthalene and O-xylene.
- * Results indicate that SA-H-CS not only increases the efficiency of AH degradation but also diversifies the microbial community and enhances its metabolic functions, supporting effective bioremediation in contaminated groundwater environments.
Enhanced phosphate removal with fine activated alumina synthesized from a sodium aluminate solution: performance and mechanism.
RSC Adv
February 2022
School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
Fine activated alumina (FAA) acting as an adsorbent for phosphate was synthesized from an industrial sodium aluminate solution based on phase evolution from Al(OH) and NHAl(OH)CO. This material was obtained in the form of γ-AlO with an open mesoporous structure and a specific surface area of 648.02 m g.
View Article and Find Full Text PDFReagent elution combined with positive pressure filtration: A zero-discharge method for cyanide tailings remediation.
J Environ Sci (China)
March 2022
Department of Environmental Engineering, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China. Electronic address:
At present, the cyanide gold extraction process is still the main technology for gold production. Generated cyanide tailings containing highly toxic substances exhibit potential environmental risks. These tailings are in urgent need of purification treatment, especially after being classified as hazardous waste.
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