ZEC undertook a number of general contracting of the Oily wastewater treatment projects in 1997-2004, cooperating with Architectural Design & Research Institute of Tianjin University and School of Environment Science and Engineering in Tianjin University, and obtained a national patent of oilfield wastewater treatment method.Since March 22, 2013, Department of wastewater treatment projects built a collection box structure test device at the heavy oil wastewater treatment station in Second oil recovery factory in Henan Oilfield. The wastewater from the air flotation device enters into the test device, and the proprietary microbial strain is added into the test device. The purpose of the test is to test the biodegradability of low polluted water, to observe the biological activity of bacteria in low polluted water, to understand the ability of removing hazardous substances from the heavy oil wastewater, for heavy oil wastewater with high temperature, high salt, high salinity, low COD and BOD.
The site biological treatment system began to treat the heavy oil wastewater with COD concentration of 360 mg/L since December 20, 2003. The effluent’s COD concentration fell to below 100 mg/L on January 6, 2004, and fell to 72.8 mg/L on January 15, and fell to 64.15 mg/L on January 18 laboratory. The biological treatment system was been put into normal operation since then.
Scope of Business
●Petrochemical industry wastewater treatment.
●Metallurgy, mining and other industry wastewater treatment.
●With Cu, Fe, Zn, Cd, As and other sewage treatment（Maximum throughput capacity 7500m3/d）.
●Sludge dehydration, storage, recycling.
●Reclaimed water, softened water, desalted water preparation.
●Malodorous gas treatment.
Characteristic
●According to the configuration of specific pollutants degradation microorganisms, the nutrients special and strengthening measures, in the wastewater treatment process always maintained a high activity of microorganism, in order to achieve high processing efficiency.
●Biochemical bacteria cultivation independent and strong shock resistance, wide adaptation range.
●Can rapidly, economically the traditional activated sludge process could not be treated sewage, including:
★High concentration, high toxicity, refractory industrial wastewater
★Gao Shuiwen (60 ℃) wastewater
★Salinity wastewater with high salt, high ore
★COD, BOD low sewage
优势
大幅提高有机物处理负荷
与传统活性污泥法相比，可提高几十倍以上的容积负荷，处理负荷: CODCr4－50kg/m3·d。
稳定高效的生物活性
运行温度: 15 -60 ℃
TDS浓度 : 0 -60 g/L
降低运行费用
与传统活性污泥法、物理化学法相比，流程短，投资和运行费用低。
环境友好型工艺，无二次污染
有机污染物被分解彻底，没有二次污染，可以针对特定水质开发适宜的生物菌群。
研发中心介绍
研发中心配有先进的厌氧、好氧生化小试装置、电解试验装置等小试仪器，配备各种废水水质分析等仪器，可开展废水水质分析、废水可生化性识别、生物状态监测、废水生化小试试验、难降解废水电解试验等研究。
研发中心发展目标
● 研发中心主要围绕企业的环保发展需求，立足于国际环保科技发展前沿，坚持“创新、应用、技术、服务”的宗旨。
● 开展以生物科学为核心，高效微生物研究培育、高浓度废水处理、高盐废水处理、污泥生物处理等领域的基础研究与应用研究，致力于环保领域生物功能开发与利用的关键瓶颈问题，力争实现高难度废水生物处理技术跨越式发展。
● 形成具有行业特色并可凝聚“产、学、研”联合研发潜能的废水处理科技创新和产业化的研发基地。