Author
Shangyong Lin
Bio: Shangyong Lin is an academic researcher from Central South University. The author has contributed to research in topics: Environmental pollution & Sulfide. The author has an hindex of 7, co-authored 26 publications receiving 143 citations.
Papers
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TL;DR: In this article, an attempt was made to apply EO combined with coagulation-flocculation (CF) mechanism for the removal of COD and NH4+-N from lead smelting wastewater containing high salts by using low-cost graphite anode.
57 citations
TL;DR: The bench-scale results indicated that the selective index improved significantly when using AMT as a chalcopyrite depressant in Cu-Mo flotation separation and first principles periodic calculations indicated that AMT would prefer to adsorb onto Cu rather than Fe.
Abstract: A novel compound 4-amino-5-mercapto-1,2,4-triazole was first synthesized, and its selective adsorption mechanism on the surface of chalcopyrite was comprehensively investigated using UV–vis spectra, zeta-potential, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy measurements (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and first principles calculations. The experimental and computational results consistently demonstrated that AMT would chemisorb onto the chalcopyrite surface by the formation of a five-membered chelate ring. The first principles periodic calculations further indicated that AMT would prefer to adsorb onto Cu rather than Fe due to the more negative adsorption energy of AMT on Cu in the chalcopyrite (001) surface, which was further confirmed by the coordination reaction energies of AMT-Cu and AMT-Fe based on the simplified cluster models at a higher accuracy level (UB3LYP/Def2-TZVP). The bench-scale results indicated that the selective ind...
41 citations
TL;DR: In this paper, the authors investigated the treatment and reuse of sulphide mineral processing wastewater through electrocoagulation and determined the optimum value of operational variables, and the results showed that the chemical oxygen demand (COD) removal efficiency reached 98.36% under the optimum treatment conditions.
37 citations
TL;DR: In this paper, an internal reuse of process water in the flotation circuit minimized freshwater consumption by 34.62% (i.e., from 5.2 t/d to 3.4 T/d), indicating that 525.6 tons of wastewater would no longer be generated every year.
32 citations
TL;DR: In this article, a series of laboratory tests showed that the final settlement effects of polyferric sulfate and lime for tailings pulp settlement were comparable, however, the COD of tailings water by PFS settlement was considerably reduced compared with that of lime settlement.
18 citations
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TL;DR: In this article, the authors reviewed the current emerging hybrid technologies of EC with integrated separation technologies and their limitations for enhanced wastewater treatment systems for cleaner effluents, water reclamation and recycle.
Abstract: Electrocoagulation (EC) is a popular wastewater treatment alternative that had been studied extensively for a wide range of wastewater types, due to its versatility, ease of setup, low footprint and eco-friendly nature The recent studies on EC advancements on various wastewater types had been reviewed in this paper The operational variables that are vital to EC and the fundamental relationship of EC with conventional chemical coagulation had been assessed as they are the primary factors that govern the pollutant removal mechanism of the process Hence, EC needs further studies for optimisation of its process parameters and modelling for scale up in the industrial level Moreover, this paper reviews the current emerging hybrid technologies of EC with integrated separation technologies and their limitations for enhanced wastewater treatment systems for cleaner effluents, water reclamation and recycle The current prominent hybrid EC processes under research include: EC-adsorption, EC-peroxidation, EC-chemical coagulation (CC), photovoltaic EC and EC-membrane Due to the overall low footprint requirement, environmental sustainability and strong potential of constant operation without needing extensive control, hybrid EC-membrane process undeniably stands out to be the future of wastewater treatment
144 citations
TL;DR: A state-of-the-art review for the recent processes available in the literature that combine treatment electrocoagulation with one of the previously mentioned treatment processes found that the removal efficiency of any combined processes is higher than that of any single treatment process.
86 citations
TL;DR: In this article, the suitability of chitosan as an adsorbent for heavy metal removal was analyzed and the effect of modifications on the adsorption performance was discussed.
75 citations
TL;DR: In this paper, a novel surfactant bearing both hydroxyl and thione groups was proposed for selective flotation-separation of chalcopyrite from pyrite.
61 citations
TL;DR: This review comprehensively introduces the characteristics of several main ammonia-nitrogen source wastewater plants and their respective challenges in treatment, including municipal wastewater, industrial wastewater, livestock and poultry wastewater and landfill leachate.
Abstract: The recovery of ammonia-nitrogen during wastewater treatment and water purification is increasingly critical in energy and economic development. The concentration of ammonia-nitrogen in wastewater is different depending on the type of wastewater, making it challenging to select ammonia-nitrogen recovery technology. Meanwhile, the conventional nitrogen removal method wastes ammonia-nitrogen resources. Based on the circular economy, this review comprehensively introduces the characteristics of several main ammonia-nitrogen source wastewater plants and their respective challenges in treatment, including municipal wastewater, industrial wastewater, livestock and poultry wastewater and landfill leachate. Furthermore, we introduce the main methods currently adopted in the ammonia-nitrogen removal process of wastewater from physical (air stripping, ion exchange and adsorption, membrane and capacitive deionization), chemical (chlorination, struvite precipitation, electrochemical oxidation and photocatalysis) and biological (classical and typical activated sludge, novel methods based on activated sludge, microalgae and photosynthetic bacteria) classification based on the ammonia recovery concept. We discuss the applicable methods of recovering ammonia nitrogen in several main wastewater plants. Finally, we prospect the research direction of ammonia removal and recovery in wastewater based on sustainable development.
59 citations