本研究针对北方城市水体天然径流量小，自净能力差，水体易发生黑臭的情况，选择淮河流域重要支流、许昌市区最大的景观水体清潩河为研究区，以河流容量总量控制为基础，统筹考核水质和水量，研发了一套由水质问题诊断、水环境容量计算、削减总量确定与分配、治理方案设计与优化、实施效果评估等方面组成的典型北方城市黑臭水体治理技术。成果应用后，清潩河水质由2013年劣Ⅴ类跃升为2017年接近Ⅳ类。研究成果具有重要的推广
Two microbial electrolysis cells (MECs) fed with dewatered sludge (DS) and freezing-thawing pretreated DS were operated to investigate the influence of freezing-thawing pretreatment on the degradation
Based on Reynolds-Stokes equation, this paper deduced an improved model describing the distribution of flow velocity in smooth open channels.Taking into account the discovery of water flow, a general
石墨烯基材料具有独特的物理化学生质因而是一种良好的吸附材料，但吸附过程中易团聚、吸附完成后难以分离再生等问题限制了其应用范围。磁性石墨烯基复合材料不仅结合了石墨烯基材料的优良吸附能力和磁性材料易于分离的特性，还解决了是石墨烯基材料易团聚和重新堆积的问题，在水处理领域有广阔的应用前景。文章介绍了石墨烯及磁性石墨烯基复合材料的常用合成方法，并着重阐述了其在去除废水中金属离子和难降解有机污染物等水处理领
Polyvinyl chloride (PVC) flat sheet membranes with high tensile strength were fabricated via immersion precipitation phase inversion method used DMAc/DOP as the mixed solvents.The influences of DOP co
In view of the problem of extensive irrigation in water diversion irrigation in Hetao irrigation area, and the problem of increasing the planting area in order to increase the output, it is necessary
With the development of ecological irrigation area at present, it requires higher detection and control of weeds in irrigation area.In this paper, aiming at the ecological irrigation area, a classific
Antibiotic resistance genes (ARGs), as emerging environmental contaminants, have become a threat to human health.The secondary effluent of the municipal wastewater treatment plant was treated by two u
Accurate and efficient extraction of ecological irrigation canals plays a key role in realizing agricultural modernization.In view of the problem of ecological irrigation canal extraction, this paper
本研究采用传统的高级氧化技术之一的芬顿氧化(Fenton)降解孔雀石绿模拟印染废水,研究了铁粉为铁源的非均相芬顿反应的降解效果,检测并对比降解前后的色度、CODCr等的去除率,得出最适宜反应条件.铁粉法实验结果表明,在pH为2.6,H2O2浓度1.5mmol/L时(铁粉过量),色度、CODCr、孔雀石绿的去除率达99.6％、96.6％和99.1％,铁粉法非均相芬顿和传统硫酸亚铁试剂法的去除率相近,