State media in china report that a chemical company in shanxi province leaked potentially toxic wastewater into a river earlier this month without telling anyone 中国官方媒体报导，本月早些时候，陕西省榆林市米脂县的一家氯硷化工厂隐瞒把有毒废水排放到一条河流中的事故。
Dtu 65 . 10 - building works - piping used for cold and hot pressure water and piping for evacuation waste water and rain water inside buildings - general rules of execution - part 1 : technical specifications Dtu 65 . 10 .建筑工程.建筑物内雨水和废水排放用加压冷热水管道.通用排放规则.第1部分:技术规范
The scope of water - using system and its constraints were determined based on the investigation , and minimal amount of fresh water and wastewater in water - using system were calculated to optimise the design of water - using network 在厂区用水情况调查基础上，确定用水系统范围及限制杂质；并计算所确定用水系统的最小新鲜水用量和最小废水排放量；最后对其用水网络进行优化设计。
Citing a report by the state environment protection administration , said that china produced more than 12 - billion tons of industrial waste water in the first half of 2006 . that figure is up around two - and - a - half percent from the same period last year 中国日报援引中国国家环境保护总局的一份报告说，中国在2006年上半年工业废水排放量为120亿吨，比去年同期上升了大约2 . 5 % 。
For example , if you were estimating the quantity of your wastewater discharges you could estimate the average amount of wastewater generated at your sanitary facilities per employee per day accounting for reduced usage on saturdays and during holiday periods 举例说，估计废水排放量时，可估计每名员工每日在卫生设施产生的废水，然后考虑周六及假期用量减少的因素，据此算出平均值。
A traditional printing and dyeing wastewater treatment process was improved . added the fe - c tank and coagulation tank , the aeration tank was changed into a contact oxidation tank , in which the diffent function of micro - bacteria was formed along the vertical of aerations . the removal ratios of cod 、 ss 、 bod5and chromaticity were increased by 19 . 7 % 、 14 . 5 % 、 9 . 3 % and 18 . 6 % respectively , which reached the national discharge standards 根据某厂印染废水的特点,在原有处理工艺的基础上进行了改造,在池内形成了合理的微生物分布,大大改善了出水水质,使cod 、 ss 、 bod5和色度的去除率分别提高了17 . 1 % 、 14 . 4 % 、 9 . 2 % 、 19 . 5 % ,达到了废水排放标准的要求。
It focuses on designing and selling complete systems of ductile cast - iron pipes for drinking water , irrigation , wastewater drainage and rainwater drainage ; pipe systems for industrial general circuits ; pipe systems for fire prevention ; full ranges of valves , sprinklers and connectors for water and purification systems ; fire prevention and irrigation devices ; complete cast - iron pipe systems for building industry wastewater and rainwater drainage ; and roadworks components made of steel and ductile cast iron and steel for accessing pipe systems water supply , wastewater drainage and telecommunications 其主要业务是设计并销售全套球墨铸铁管道系统，用于饮用水，灌溉，废水排放，雨水排放工业，工业水系统，消防管网系统，水及净水系统所需各类管件及高压接口，消防及灌溉用各类管件，建筑工业用管道系统系列废水及雨水排放，道路工程用各类配件井盖等。
A series of products made by skysea company are widely applied to industries such as severely - polluted sewage discharge in factories and businesses , sewage discharge of residential areas , civil air - defense drainage station , hospitals , farm irrigation , printing and dyeing , equipment cooling , food , environmental protection , chemical engineering , petroleum , pharmacy , mining , paper making , power plant , coal and oil processing , steel , shipbuilding , ceramics , leather manufacture , drainage system of city sewage disposal , municipal engineering and construction field . they have got a favorable reception from clients 天海系列产品被广泛应用于工厂商业严重污染废水排放、住宅区的污水排放、人防系统排水站、医院、农田灌溉、印染、设备冷却、食品、环保、化工、石油、制药、采矿、造纸、电厂、污水排放、煤油加工工业、钢铁工业、造船工业、陶瓷工业、制革工业，以及城市污水处理厂排水系统，市政工程，建筑工地等行业深受客户好评。
Related elucidation : in the above data , from the entry - level pure water to pure water , it measures to 75 % for . namely each 1 . 25 rise the entry - level pure water can produce pure water 1 rise , the running water system is pure aqueous of parameter is also such , from above the data can see , in make take the circuit plank the production have to of the purely aqueous process , adoption collections waste water of way , make the waste water get and return and use in water , reduce waste water and exhaust in the meantime , in this process , not only a great deal of decrease the waste water exhaust quantity , and list make water cost but talk , use waste water each time produce on signing square and pure water , can decline low cost 0 . 34 dollars at least , more important can lower waste water and exhaust quantity consumedly 相关说明:以上数据中,从初级纯水到纯水,其为出量为75 % .即每1 . 25升初级纯水可以产纯水1升,自来水制纯水的参数也是如此,由以上数据可以看出,在制取线路板生产所必须的纯水的过程中,采用收集废水的方式,使废水得到中水回用,同时减少废水排放,在此过程中,不但大量减少了废水排放量,并且单就制水成本而言,用废水每生产一立方纯水,可至少降低成本0 . 34元,更重要的是可以大大降低废水的排放量
