HYLS microbial technology for treatment of emulsified oily wastewater BYCS Microbial technology for treatment of produced water in oilfield for reinjection Advanced treatment of refinery wastewater for recycling Treatment of wastewater from organic chemical industry with high pollutant concentration Treatment of wastewater with high concentration of ammonia nitrogen for recycling Biological aerated filter technology Ceramic membrane treatment technology Anaerobic reactor technology Microbial selection and combination technology Bioremediation technology Seawater demineralized technology by solar power Solid waste treatment technology Municipal sewage treatment technology for recycling Membrane bioreactor technology YZL integrated automatic purifier Plasma, gasification, melting technology Oily sludge remediation and crude oil recovery technology