汽车排气的综合治理

汽车排气污染已经成为城市中主要的空气污染源，本文分析了汽车排气污染产生和加重的原因，提出了综合治理汽车排气污染的3条技术途径和6条非技术途径。     

农业旱灾中人为因素的定量分析 --以秀山县为例

以重庆秀山县为研究对象。对建国后50年中各年代人为因素对农业旱灾的作用进行了比较，探讨了其成因及变化趋势。研究表明，在20世纪50年代和60年代，秀山县由于生态破坏、水利设施不足和不合理的政策导向等，人为因素起着加剧旱灾灾情的作用，而在70年代至90年代。由于农业基础设施投入的加大、抗旱政策的制定等，人为因素开始起着越来越强的缓解灾情的作用。     

铁锈及Fe(OH)3处理硫酸盐废水厌氧方法试验

投加铁锈或Fe(OH)     

To take a clean technology as a strategy for pollution control in industry

A clean technology in thermal power station by adding of limestone into coal for getting the co-melted compounds was studied. Comparing with conventional technology, the quantity of ash discharged is decreased from 85% to 15%, the water consumption is 80% less than traditional method. The slag discharged could be used as raw materials for cement and bricks. In addition, the SO2 content is decreased as well.     

Prediction and coordination of the man-environment system—a case study in Jiaozuo City

In this paper, the new systematical theory and methodology have been applied to the research on the structure, development and coordination of man-environment system in Jiaozuo City. It has been proved that the application of self-organization theory of synergism is successful. Furthermore, on the basis of self-organization theory, a series of mathematical models have been established. The prediction of the status of man-environment system in Jiaozuo City by the year 2010, was made, and the trend of population growth, industrial development, environmental pollution were given. Finally, suggestions for the future development of Jiaozuo City were mentioned.     

Treatment of phenol wastewater by microwave-induced CIO_2-CuO_x/Al_2O_3 catalytic oxidation process

The catalyst of CuO_x/Al_2O_3 was prepared by the dipping-sedimentation method usingγ-Al_2O_3 as a supporter.CuO and Cu_2O were loaded on the surface of Al_2O_3,characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).In the presence of CuO_x/Al_2O_3,the microwave-induced chlorine dioxide(ClO_2) catalytic oxidation process was conducted for the treatment of synthetic wastewater containing 100 mg/L phenol.The factors influencing phenol removal were investigated and the results showed that microwave-induced ClO_2-CuO_x/Al_2O_3 process could effectively degrade contaminants in a short reaction time with a low oxidant dosage,extensive pH range.Under a given condition(ClO_2 concentration 80 mg/L,microwave power 50 W,contact time 5 min,catalyst dosage 50 g/L,pH 9),phenol removal percentage approached 92.24%,corresponding to 79.13% of COD_(Cr) removal.The removal of phenol by microwave-induced ClO_2-CuO_x/Al_2O_3 catalytic oxidation process was a complicated non-homogeneous solid/water reaction, which fitted pseudo-first-order by kinetics.Compared with traditional ClO_2 oxidation,ClO_2 catalytic oxidation and microwave-induced ClO_2 oxidation,microwave-induced ClO_2 catalytic oxidation system could significantly enhance the degradation efficiency.It provides an effective technology for the removal of phenol wastewater.     

环境执法责任制是依法行政的根本保证

加强环境行政执法,是当前环境法制工作的重点,是推动环保各项工作开展的关键环节。本文从辛集市环境执法工作中,提出实施执法责任制是依法行政的根本所在。     

国际成人环境教育综述

本文对国际成人环境教育的发展过程及状况进行了综述,阐述了国际成人环境教育的发展趋势,供我国开展成人环境教育借鉴。     

清初“摊丁入亩”政策对环境的影响

清初“摊丁入亩”政策对清社会经济的恢复发展确实起到了促进作用,但同时对环境也构成了巨大威胁,引发了地表植被遭严重玻坏、自然灾害频繁、珍稀野生动植物大量灭绝等一系列环境问题。剖璞见玉,对今有史鉴作用。     

我国的环境问题及保护措施

本文介绍了我国1998年环境保护工作的进展情况,详细分析了全国目前的环境状况,从而提出了我国1999年环境保护工作的主要任务及保护措施。