Semi-solid anaerobic co-digestion of source-separated fecal slag and food waste: focusing on methane production,ecological risk assessment,and quality evaluation as fertilizer

Environmental Science and Pollution Research - Toilet revolution is driven by the urgent need for solutions to improve sanitation and access to high-quality organic fertilizer for rural areas,...     

Biotoxicity and bioavailability of hydrophobic organic compounds solubilized in nonionic surfactant micelle phase and cloud point system

Environmental Science and Pollution Research - A recent work has shown that hydrophobic organic compounds solubilized in the micelle phase of some nonionic surfactants present substrate toxicity to...     

The indecisive role of the market in China’s SO2 and COD emissions trading

Governmental intervention is essential to combat environmental pollution, a phenomenon classically explained as market failure, while market-based environmental policy instruments have provided cost-effective alternatives. By examining five pilot air pollution (sulfur dioxide) and water pollution (chemical oxygen demand) trading schemes in China through a market-based theoretical framework and extensive empirical analysis, this research analyzes where a state-market boundary is defined, whether the market is performing effectively, and, critically, what leads to underperformance. Constrained by policy design, policy conflicts, and excessive state intervention, the market has not played an effective and ‘decisive’ role, resulting in low market thickness for participants and transactions, market congestion on prices, and inadequate market safety for genuine emissions trading. Better emissions trading for conventional pollutants and CO₂ requires better market-oriented rules, improved policy coordination, and stronger implementation while minimizing state intervention.     

Removal of antimony from antimony mine flotation wastewater by electrocoagulation with aluminum electrodes

Antimony (Sb) has received increasing environmental concerns due to its potential toxic and carcinogenic properties. In the present work, the electrocoagulation technique was used to treat the flotation wastewater from a heavy antimony polluted area, and the mechanism of removing Sb was also investigated. The study focused on the effect of operation parameters such as current density, initial pH and standing time on the Sb removal efficiency. Antimony concentration of below 1 mg/L in the treated wastewater was achieved, which meets the emission standards established by State Department of Environmental Protection and State Administration of China for Quality Supervision and Inspection and Quarantine of China.     

Forecasting of dissolved oxygen in the Guanting reservoir using an optimized NGBM (1,1) model

An optimized nonlinear grey Bernoulli model was proposed by using a particle swarm optimization algorithm to solve the parameter optimization problem. In addition, each item in the first-order accumulated generating sequence was set in turn as an initial condition to determine which alternative would yield the highest forecasting accuracy. To test the forecasting performance, the optimized models with different initial conditions were then used to simulate dissolved oxygen concentrations in the Guanting reservoir inlet and outlet (China). The empirical results show that the optimized model can remarkably improve forecasting accuracy, and the particle swarm optimization technique is a good tool to solve parameter optimization problems. What's more, the optimized model with an initial condition that performs well in in-sample simulation may not do as well as in out-of-sample forecasting.     

基于区间数排序的水环境质量评价方法研究

目的：地表水水质随季节性变化较大,为了更准确地评价某地区全年地表水环境质量,尝试将不确定多属性决策方法中的区间数排序法用于水质评价。方法：将地表水环境质量标准值与不同时期的水质监测数据分别定义为区间数,利用区间数比较的可能度公式,得出两者可能度关系并进行排序。排序结果显示,浑河东陵大桥处2006年水质劣于地表水V类标准值的可能度为0．531,即2006年浑河东陵大桥处水质为劣V类。结论：基于区间数排序的地表水环境质量评价方法考虑了全年不同时期的水质变化情况,与模糊综合评判法得出的结果基本一致,可比较准确地评价某地区全年水质状况。     

葡萄酒工业固体废物的综合利用

葡萄酒是用新鲜的葡萄或酒汁发酵制成的,乙醇含量很低,通常在8%～14%之间。除做为佐餐酒外,还有预防疾病的功效,深受各国人民的喜爱。葡萄酒的生产过程中会产生一些副产物,主要为皮渣、酒脚等固体废物,从这些废物中可以采用提取葡萄籽油、原花青素、酒石酸盐等有较高医用和商用价值的物质,提取上述物质后的皮渣还可作饲料添加剂。在葡萄酒原产地就地消化葡萄酒生产中的副产固废,实现资源再利用,从而生产出其他类型产品再服务于人类社会,符合循环经济的理念。     

防治海水入侵的地下水人工调蓄研究——以辽宁六股河地段为例

随着城市的发展,大量抽取地下水,海水入侵灾害已成为制约沿海地区社会经济可持续发展的突出因素.论文以六股河地段为例,针对海水入侵灾害现状,建立了地下水流数值模拟模型,探讨通过地下水人工调蓄来防治海水入侵灾害的途径.     

建设项目竣工环保验收监测工作的再认识

建设项目竣工验收监测,是对污染源的监督性监测,是对项目取得排污权前的一次“体检”。在阐述建设项目验收监测作用的基础上,指出了验收监测存在的缺陷,并从节能减排的高度,提出了相应的对策。     

NID脱硫技术与气动脱硫技术的运行成本分析

介绍了NID脱硫技术在410 t/h燃煤锅炉与气动脱硫技术在220 t/h水煤浆锅炉上的应用情况,比较分析了两种脱硫装置的运行成本,并提出成本控制建议.