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The plant had different accumulation capacity to different metals, which depended on the amount of different forms of Pb and Cd. All this proved Lolium perenne L was a kind of fit plant for phytoremediation of Pb, Cd-organic contaminants.

黑麦草改善了受污染底泥的颗粒特性,对修复重金属Pb,Cd-有机物污染效果良好。

A field trial for plant density has been used for practical remediation in 2004 and 2005, it has four treatments, 10 cm×10 cm、20 cm×20 cm、10 cm×40 cm and 40 cm×40 cm, respectively. The results were follows: the optimization plant density was 20 cm×20 cm; Peteris vittata L. was a herbaceous plant fit to adequacy increased density for enhancing the biomass and removalling of arsenic; with increased the plant density, the plant were accumulated more proportion arsenic in their fronds, and then made promote the efficiency of arsenic removal from contaminated soils.(2) It was a complicated pyrolysis course for plant incineration.

1在10cm×10cm、20cm×20cm、10cm×40cm与40cm×40cm 4个种植密度下,利用蜈蚣草对砷污染土壤进行了2年的田间实际修复,得出如下结论:蜈蚣草是一种适宜于密植的草本植物,具有通过提高栽培密度来提高其地上部生物产量的潜力;同时蜈蚣草密植有利于促使其吸收的砷向地上部富集,从而有利于进一步提高其对砷污染土壤的修复能力;综合考虑修复过程中的收获方式、经济成本与可操作性,在4个密度处理中密度20cm×20cm为蜈蚣草的最佳栽培密度。

Services at home part-time professional cleaning range hood clean professional wood floor waxing and nursing home kitchen clean, oil and surface cleaning leather sofa cleaning, care, maintenance of air cleaning, maintenance, repair the family to move around the wasteland clean clean clean factory wasteland testing room, car pollution ( Such as: formaldehyde, benzene, ammonia exceeded) Indoor pollution treatment carpet cleaning, chemical carpet cleaning house cleaning external cleaning the family, shopping malls, office cleaning and monthly Iron and Steel Co., rust wall paint renovation renovation beauty, nutrition consultant professional beauticians-site service providers, long-short-haul freight moving business to undertake 1.5T and 0.8T

服务项目家居清洁卫生钟点专业清洗抽油烟机专业家居实木地板打蜡及护理厨房清洁、油面清洁真皮沙发清洗、护理、保养空调清洗、保养、维修家庭开荒清洁搬家前后清洁工厂开荒清洁检测室内、车内污染室内污染治理地毯清洁、化纤地毯清洁别墅清洁外墙清洗家庭、商场、写字楼清洁及包月钢铁制品除锈翻新装修工程墙面粉刷美容、营养咨询顾问专业美容师上门服务提供长短途货运1.5T和0.8T承接搬家业务

The government has promised to close the foulest factories and to shutter thousands of illegal mines, where some of the worst safety and environmental hazards are concentrated. But no one is talking about shutting the region's coal-burning power plants, which account for more than half the pollution.

政府曾经承诺关闭对安全及环境危害最巨的污染严重的工厂及数千家非法小煤窑,但没人提议关闭这一带的燃煤火电厂,一半以上的污染是由它们带来的。

Based on the above actuality, this paper studied the high quality incineration technics and theory in a self-designed rotary incinerator. The variation of several operation conditions such as waste feedrate, excess air ratio, air distribution and rotation speed of the fulcra has been employed to study the formation and control theory of NOx, SO〓and HCl. Based on the experimental results, a simple and comprehensive model has been proposed to describe the process of acid gas formation and reduction. The results show that the formation of pollutants strongly depend on the incineration state of the solid waste in the rotary incinerator.

本研究在—自行设计的新型转式垃圾焚烧炉中,重点研究了焚烧炉的优质焚烧工艺和理论,并在此基础上,研究模化有机垃圾在转式焚烧过程中酸性污染气体NOx,SO〓和HCl的生成控制原理,特别是研究进料率、过剩空气系数、配风和转轴转速等条件对NOx,SO〓,HCl生成的影响,并在此基础上建立了转式垃圾焚烧炉中酸性污染气体的生成理论模型,结果表明,焚烧过程污染物的生成强烈地依赖于垃圾在转式焚烧炉内的燃烧状态,必须在高垃圾燃烬率和低污染物排放之间寻找优化的平衡条件。

The method of pollutant gas cloud spectrum real-time simulation was very important to the recognition of the pollutant gas leakage.

文中建立的污染气体云团光谱实时仿真方法对污染气体泄漏的识别判断有着很重要的意义。

As gold tailings fine grain, and pharmaceutical processing, as well as containing metal ions, an event of high winds, especially in the dry season 3-6, Guade tailings sand rose, dusty, into the villages, fields, orchards, to be against pollution, the pollution resulting from this dispute will be a direct impact on social stability and unity.

由于金矿尾矿粒度细,并含有选矿药剂以及金属离子,一遇大风,特别是干季3—6月份,将尾矿刮得黄砂骤起、尘土飞扬,落入村庄、农田、果园,使其受到污染侵害,由此而产生的污染纠纷将直接影响社会的安定团结。

Evaluation with the single-item pollution index method and the comprehensive pollution index method, the indexes were far less than 1.It is known that the ecological environment was very suitable for green grape production.

用单项污染指数法和综合污染指数法评价,其值均远小于l,说明该地区生态环境良好,符合绿色食品产地环境质量标准的要求。

There are frequent surface disturbance and severe wind erosion and gravity e...

结果表明:工业广场区水土流失轻微,但粉尘污染严重,重点是营造防污染林带;开挖区地面扰动频繁,风蚀和重力侵蚀加剧,应注重周边溯源侵蚀和崩塌的防护;待开挖区与原地貌水土流失相当,应以暂时性水土保持措施为主;而排土场是在重型机械操作下堆置而成的一种大型人工松散堆积体,是矿区水土流失治理的重点。

Groundnut haulms are specially fed to dairy cow and when haulms contamination small pods are used problem with reduced yield and and aflatoxin M1 contamination of milk ensue.

花生秧尤其是喂给奶牛时,如果花生秧上小的花生荚被黄曲霉毒素污染了,就会引起奶牛产奶量下降,以及黄曲霉毒素 M1污染奶等问题发生。

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