稳定土技术在土路扬尘治理中的应用及展望

综合分析了稳定土技术用于土路扬尘污染治理的各种方法 ,在此基础上对该课题的研究及其发展提出了有关看法和建议。     

橡胶厂污水达标排放改造

通过对橡胶厂污水处理系统各单元运行状况进行检测 ,找出系统不能达标排放的原因 ,提出了改造方案 ,并对系统进行了改造。改造后的结果表明 ,在来水处于正常的情况下 ,即CODCr<80 0mg L ,系统最终出水CODCr<10 0mg L。     

亚铵法麦草浆黑液的回收与污染治理新技术的研究

通过对亚铵法麦草浆黑液性质的研究 ,提出了蒸发浓缩 +生物活性有机肥生产的新技术路线 ,并结合生产实践对该技术加以研究、归纳 ,并进行了经济分析。实践证明 ,运用该技术不仅能实现亚铵法麦草浆黑液的回收和污染治理达标 ,而且能为企业带来可观利润 ,使企业走上可持续发展之路。     

黄河流域生态保护与高质量发展的耦合关系及交互响应

在分析生态保护与高质量发展耦合机理的基础上,以省域为研究单元评价黄河流域生态保护与高质量发展的耦合协调度,并与长江经济带进行对比;利用面板VAR模型定量考察黄河流域生态保护与高质量发展的交互响应关系。主要结论如下：（1）研究期内黄河流域生态保护指数和高质量发展指数均呈现增长的趋势,总体均呈现中下游地区高于上游地区的格局。（2）研究期内黄河流域生态保护与高质量发展的耦合协调度整体呈现增长的态势,其中2003—2011年耦合协调度小于0.5,属于拮抗阶段;2012—2017年耦合协调度处于0.5~0.7之间,属于磨合阶段;耦合协调度总体呈现下游>中游>上游的空间格局,在省域层面山东和陕西的耦合协调度最大,宁夏和青海的耦合协调状况最差。（3）黄河流域的生态保护指数略高于全国平均水平,但低于长江经济带;高质量发展指数和耦合协调度都低于全国平均水平,与长江经济带的差距更大。（4）黄河流域生态保护与高质量发展两个子系统都存在正向累进效应和惯性发展特征,并且两者对于自身的影响程度都呈现逐步下降的态势,其中高质量发展对自身的影响程度下降更为明显;黄河流域生态保护与高质量发展具有正向促进作用,但由于生态保护和高质量发展水平偏低且内部发展不均衡,造成二者的作用机制不显著。     

Cost–benefit analysis of construction waste source reduction: a system dynamics approach

Environmental Science and Pollution Research - Construction waste (CW) source reduction is a crucial strategy to address the sustainability issue of the construction industry. The economic benefit...     

Interactions of operating parameters on the production of waste polypropylene pyrolysis oil: neural fuzzy model and genetic algorithm optimization

Journal of Material Cycles and Waste Management - This study aims to maximize the waste polypropylene (WPP) pyrolysis oil yield by regulating the operating parameters. The interactions of operating...     

双循环两相生物处理工艺(BICT)除磷中试试验

一种新型的生物脱氮除磷工艺——双循环两相生物脱氮除磷工艺,它是在序批式活性污泥法基础上增设独立的生物膜反应器,实现微生物的分相培养,对提高脱氮除磷效率、增强系统运行的稳定性和可靠性提供了很大的潜力。通过对城市污水的试验,结果表明,在适宜的负荷和运行条件下TP去除率可达90%,出水TP浓度可控制在1·0mg/L以下。     

Quantifying groundwater phosphorus flux to rivers in a typical agricultural watershed in eastern China

Environmental Science and Pollution Research - Increasing evidence indicates that groundwater can contain high dissolved phosphorus (P) concentrations, thereby contributing as a potential pollution...     

Adsorption performance and mechanisms of mercaptans removal from gasoline oil using core-shell AC-based adsorbents

Environmental Science and Pollution Research - Sulfur compound detection such as mercaptans in liquid fuels is undesirable because sulfur is the main sourcing emission of sulfur oxide (SOx) into...     

Co- and tri-generation system based on absorption refrigeration cysle: a review

ABSTRACT

Absorption refrigeration system is a heat-driven refrigeration system, which has a good application prospect in co- and tri-generation system, and is of great significance to energy conservation and emission reduction. In this paper, the combined power and cold system the combined power and cooling system and the combined cold cooling, heat, and power system based on absorption refrigeration are reviewed. Working fluid of absorption refrigeration cycle, different configurations, system performance, main application fields, and economic considerations of co- and tri-generation systems were focused in this review. This paper will be useful for the researchers to have a more comprehensive understanding of the application and development prospect of co- and tri-generation systems based on Absorption Refrigeration Cycle.