The article introduces the algal - bacterial symbiotic system in the sewage purification system mechanisms and the use of algal - bacterial symbiotic system and research results , as well as future trends 摘要利用菌藻共生系统处理污水是一项资源化技术,也是净化水体富营养化的一个有效途径。文章主要介绍了菌藻共生系统净化水质的机理和国内外利用菌藻共生系统处理污水的研究成果,以及今后的发展趋势。
In dalian water supply system of asian development bank ; reconstruction project of 80 , 000t wastewater disposal factory in chunliu , dalian , loaned by the world development bank ; and process and installation of steel pipesin the project of water supply project in dalian , loaned by oecf 公司先后中标亚洲开发银行的大连市供水系统直径1 . 8米钢管安装工程世界发展银行贷款的大连市春柳河日处理污水
Abstract : based on experimental analysis of magnetization in sew age treatment , this paper studied the biological effect of magnetization , e . g . its bactericidal action and the action of promotion algae growth etc , and analyzed th e mechanism of removal organic contaminent by magnetization 文摘:论文通过磁化处理污水的试验分析,研究了磁化对好氧微生物的活性、灭菌及促进藻类初级生产力等的生物效应,并进一步分析了磁化去除有机物的机理。
For every 1 per cent increase in the nation ' s urbanization rate ( the ratio of the population living in cities ) , china must add some 300 to 400 million square meters of housing , consume some 1 , 800 square kilometers of land , pump 140 million cubic meters of potable water , generate 640 million kilowatts of energy , and expend some 270 to 260 billion yuan ( us $ 35 billion ) of capital ; not to mention dispose of 1 . 14 billion cubic meters of wastewater each year 因为每增加百分之一的全国城镇化率(居住在城市的人口比例) ,中国必须加3亿至4亿平方米的住房,消费1800平方公里土地、泵14000万立方米的饮用水,开发出64000万千瓦的能源和花费约2600至2700亿元人民币( 350亿美元)的资金;更不用说每年要处理污水11 . 4亿立方米。
Water supplies can only be made available at a reasonably low cost , if a way to lower the cost of acquiring water can be found . additionally we need to lower the cost of foul water treatment amidst the prevailing contaminated environment . finding the equilibrium between economic development and the protection of the natural environment is one of the greatest challenges water service providers will face in the 21st century 如何在生态环境备受污染的情况下,减低?集原水及处理污水的成本,以低廉的价格保持食水的洁净卫生,使经济发展与自然环境保护取得平衡,是二十一世纪水务工作者面对的重大挑战。