Solid Waste Management Information System Based on GIS in Chongqing

The large quantity of MSW (municipal solid waste) and ISW (industrial sold waste) piled up in Chongqing has been threatening ecological environment and water resource. Efficient management is the important guarantee of disposing solid waste. This paper describes the data system of Management Information System of the Solid Waste in Chongqing based on the GIS, construction of information database, overall structure, main functions, etc. Integrating related solid waste technology with computer and geographical system, it can provide the reliable, scientific and convenient management and decision-making support of solid waste in Chongqing. The information system, developed by means of Geographical Information System (GIS) on the basis of a great deal of data and graphs of solid waste of Chongqing, includes six sub-systems as follows:data input sub-system;data query sub-system;database management and maintenance sub-system;database of modal management sub-system;application and output sub-system;system management. This system provides friendly and easy operational interface, and plays a significant role in the disposal and management of solid waste in Chongqing.     

Recovery of Waste Glass by a Method of Water Flushing Selection

In this paper,a new method of water flushing recovery of waste glsss is presented. The equipment of separation of glass from waste materials and it' s mechanisms are described.The relationship between the efficiency of separation of glass from waste materials and the physical and mechanical properties of these waste materials is analyzed. The experimental results of recovery of waste glass are given. It is found that the efficiency of recovery of glass is more than 90%.     

Degradation of PCB Waste Stripping Liquid Using UV/Fenton

The study shows that there will be a good effect to degrade printed circuit board(PCB) waste stripping liquid using UV/Fenton homogeneous photochemical catalysis system.The removal rate of COD could reach 80% at the conditions with double dose of H_2O_2,1:20 mol ratio of Fe~(2+):H_2O_2 and 80min hydraulic retention time(HRT).In all influential factors the H_2O_2 dosing ratio is the most important by order,then follows the ratio of FeSO_4/H_2O_2,and at last the illumination time.     

Experiment Analysis on Medical-Solid-Waste Layer Resistance in CFBC

The relationship between layer resistance and primary air was analyzed from the experiment of CFBC Medical Solid Waste layer resistance,and the influence of layer ply & diameter of Medical Solid Waste on layer resistance and minimum fluidize air flow flux were analyzed too. Compared with normal coal layer,it has less primary air flow flux. and the Layer resistance is less too .     

乡镇企业废水的综合再利用计划和湿地战略: 实例研究

A waste water reuse engineering was designed and then operated in Hongshan,a small town in Zhejiang Province,China,in order to solve pollution and shortage of water resources due to the development of rural enterprises.The results showed that series-structure design and cycling model were two effective modes of saving water and decreasing pollutants into environment,and wetland strategy should be a component part of the integrated planning for waste water reuse of rural enterprises.This case study could provide a basis for the optimum utilization and pollution avoidance of water resources.     

油田高矿化度废水对土壤微生物影响的研究

对油田高矿化度废水不同污染程度土壤中微生物调查研究结果表明,当旱地土壤中石油浓度＞0.5%、废水浓度＞0.1%时,对异养菌、放线菌和固N菌产生显著的抑制作用,而真菌、酵母菌数量随石油浓度的增高而增加,当水田中石油浓度＞3％时即对好气民养菌有显著抑制作用,废水浓度＞0.1%时即对厌氧异养菌和施线力产生显著抑制作用。     

中国矿业用地现状分析

当前中国矿业用地存在土地使用权取得方式单一、使用粗放,开采占地方式多、占用数量大,各类占用破坏严重,重开发生产、不注重保护治理,矿山开采企业经营困难、难以落实复垦政策等五大特征.文中提出了解决矿山用地问题的途径,提出拓宽供地方式、建立专门复垦管理机构、专门基金、多方承担复垦工程任务和加强执法力度等.     

闽北山区土壤侵蚀演变与影响因素分析

闽北山区地质、地貌复杂 ,降雨量多 ,经过 3次森林破坏 ,土壤侵蚀面积曾达 2 3 2 0km2 ,成为福建省土壤侵蚀的新的典型区域。区内暴雨多与降雨侵蚀力R值大、炼山全垦整地造林以及不合理的开发建设活动 ,是造成土壤侵蚀加剧的主要原因。介绍了新中国建立后区内土壤侵蚀演变的过程。