水环境污染论文英语参考文献

越来越多的pH值影响的自然特征， 物流的颗粒污泥。该指标含量下降 50 ％来自一百一十四点五克温度1-1颗粒五十五点一克温度1-1 颗粒pH值在逐步增加从7月3号至八月二号。 同样，与内容减少到三十九点二克比1月1日 颗粒一十一点二克与1-1颗粒，而灰协商 帐篷的比例从65.8 ％至79.6 ％的Ts 。 pH值增加导致形成一个更高 部分颗粒的直径更小的硅 同步下降，部分规模较大的颗粒 ules （图4 ） 。最小的粒子，直径小于 大于0.4毫米，构成了53 ％的颗粒，在pH 7.3 。 这个小组的颗粒上升到60 ％以上，在 pH值7.9和pH值8.2 。分数的颗粒与 直径0.4和0.8毫米时，也减少 pH值增加。密度的颗粒德 皱巴巴的一千〇六十七克1-1在pH 7.3一千○一十七克在pH值1-1 8 2个月（ pH值7月3号至7月9号）的有机负荷率表（ LR ）是 保持在16克化学需氧量1月1日一天， 89 ％的污水被重新 分发。个月的有效执行（ pH值7月3号至7月9号）是 其次是发生事故后4天的行动，由于pH值7.9 细目进水热泵系统。在事故 约。 35 ％的生物量是洗出的反应堆。那个 业绩的反应堆在pH 7.9重新设立后2 几个月运行在藻毒素LR的10克COD的1-1天，并载入 率保持在此值，在余下的实验。 中等。一般组成的鱼类冷凝显示 在表1 。凝结是补充 K2HPO4.H20 ， 2.0mM ; MgC12 ， 0.49内存; CaC12 ， 0.75毫米;氯化钾， 3.6毫米;硫酸亚铁。 H20 ， 0.020毫米;和H2SO4 ， 0.015毫米。痕量箱， 技援贷款的解决办法是增加所描述的那样Angelidaki等。 （ 1990年） 。 批量测试。具体甲烷活性蛋白（ SMA ）的大， 分子生物量测试批实验在不同pH值 UES公司从7月1号至8月5号。实验进行时开始， 宁的pH值适应期和反复结束时 在UASB反应器的实验时，反应堆的pH值为8.2 。 批次实验，进行了58毫升小瓶含有- 法二十〇毫升鱼冷凝补充上文所述。字母a 磷酸盐缓冲系统（ 18毫米）被用来和pH值 检查之前和之后的实验;的pH值为常数 在整个实验。这小瓶孵育在34 ℃ 和所有的实验进行了初步测量甲烷 生产一式三份。兄弟你就看着办吧，累死我了

As a highly developed awareness of the negative impact of industry is expected is not enough to prevent negative, resulting in a global three major crises: the shortage of resources, environmental pollution and ecological damage. Human constant discharge of pollutants into the environment. However, due to air, water, soil, diffusion, dilution, oxidation and reduction, the role of biological degradation. The concentration of pollutants and toxic naturally lower, a phenomenon called the environmental self-purification. If the discharge to the environment than the self-purification capacity, adverse changes in environmental quality will occur, endangering human health and survival, which occurred in environmental pollution. There are various categories of environmental pollution: Divided by environmental factors: air pollution, water pollution, soil pollution. Divided by human activities: industrial pollution, urban environmental pollution, agricultural pollution. Environmental pollution caused by nature, source: chemical pollution, biological contamination, physical pollution (noise pollution, radiation, electromagnetic waves) of solid waste pollution, energy and pollution. One of the most serious water pollution. So far, not in human on the planet other than Earth found in water. Water is the source of life, human life is not a lack of material, human tissue in the body of water accounts for sixty to seventy percent by weight, other animals or plants also account for the body of water more than five per cent, shows that water is essential to sustain life material. In recent years, water pollution is very serious, it is a lot of water, or discharge of waste water, can cause serious water pollution. Commonly known as the water pollution, mainly due to human factors that directly or indirectly involved in the pollutants in the water, the changes in its physical, chemical or biological characteristics of the change, which affects the normal use of water or endangers public health and living environment. Water pollution sources, including natural sources and anthropogenic sources of pollution, man-made sources of pollution are domestic and industrial wastewater discharges, pesticides, fertilizers and other substances, by surface water or groundwater infiltration and flow and into the water, making the water environment pollution, forest of logging, farming, civil engineering caused by human factors such as plankton and dissolved in water increases and so on. Not only rivers, lakes, pollution, marine pollution is also serious. Polluted rivers will continue to pollute the ocean, and marine oil pollution incidents occur frequently, but also a major cause of marine pollution. Marine pollution arising after suffering a severe red tide marine phenomenon is due to over-nutrition of sea water, some of the explosive reproduction of plankton in the water, this extraordinarily large plankton growth is pink or reddish-brown, so dyed water, leading to red tides. Red Tide is not only to the marine environment, marine fisheries and aquaculture cause serious harm, but also affects both human health and even life. On the one hand, red tide, ocean mutation caused partial disruption of marine food chain, so that became the Dead Sea area; the other hand, some of red tide organisms secrete toxins, these toxins are some of the food chain biological intake, and then if the human consumption of these organisms, the will lead to poisoning or even death. The cause of water pollution is a serious lack of one of the main. According to statistics, more than 100 countries around the world there are different degrees of water shortage, including 28 countries classified as water-scarce countries or serious water-scarce countries. Currently there are many parts of the world's water supply crisis. The lack of water resources and pollution to people's lives a series of problems. According to the survey, Libya and India, respectively, the current exploitation of water resources rational utilization of their 4 times and twice, it will directly affect their future agricultural production. Bangkok, Thailand due to the long over-exploitation of groundwater, resulting in the risk of urban ground subsidence occurred ... ... With the acceleration of urbanization, 2030, the urban population in developing countries increased by 3 times than now. If you do not take effective measures, the face of urban population growth and very limited water resources, people will do nothing. Currently, 1.4 billion people worldwide live in areas where lack of clean drinking water, 700 million people worldwide each year due to lack of water or drink unsafe water and disease deaths. And residents suffering from the disease, about 80% of unqualified drinking water directly or indirectly related. China is a shortage of water resources, water, disaster-prone countries, ranking sixth in total water resources per capita is only 2,500 cubic meters, about the world's per capita water 1 / 4, ranked 110th in the world, has been the United Nations as one of 13 water-poor countries. Over the years, the declining quality of water resources, water environment continued to deteriorate, due to pollution and accidents caused by water shortages continue to occur, not only factories closed and agricultural production or crops, and resulted in adverse social impacts and the larger economy loss, a serious threat to the sustainable development of society and threaten the survival of humanity. China's seven major river systems of the size of the degree of pollution in order to sort the pollution levels, the result is: the Liaohe, Haihe, Huaihe River, Yellow River, Songhua River, the Yangtze River, which, Liaohe, Haihe, Huaihe River pollution the most. Considering the status of surface water quality, in line with "Surface Water Environmental Quality Standard" Ⅰ, Ⅱ class standard only 32.2% (river statistics), in line with the standard Class Ⅲ 28.9%, are Ⅳ, Ⅴ standard accounting class 38.9%, if Ⅲ standard and as pollution statistics, the 67.8% of the length of the river is polluted, accounting for monitoring the length of the river 2 / 3, showing a very serious pollution of surface water resources Serious pollution of surface water resources, pollution of groundwater resources can not be optimistic? Five provinces in northern China and the Haihe River Basin groundwater resources, both in rural (including pastoral areas) or urban areas, shallow water or deep water are polluted in varying degrees in some areas (mainly around the city, the sewage and wastewater irrigation on both sides of river ) and part of the city's more serious groundwater pollution, pollution, the rise (Jinchuan Liang, 1996). Specifically, according to the five northern provinces and autonomous regions (Xinjiang, Gansu, Qinghai, Ningxia, Inner Mongolia) 1995 points of groundwater monitoring well water quality data, in accordance with the "water quality standards" (GB/T14848-93) evaluation, the results show that 69 cities, Ⅰ water quality in the city does not exist, Ⅱ water quality in the city is only 10, only 14.5%, Ⅲ Grade 22 cities, accounting for 31.9%, Ⅳ, Ⅵ Grade 37 cities, accounted for 53.6% of the total evaluation of the city, that is 1 / 2 or more cities, urban groundwater pollution. The Haihe River Basin, groundwater pollution is even more shocking, 2 015 points of groundwater monitoring wells show that water quality monitoring data, in line Ⅰ - Ⅲ water quality standard is only 443, accounting for 22.0% of the total evaluation, in line with Grade Ⅳ and Ⅵ Standards 880 and 629, respectively, accounting for evaluation of the total number of wells 43.7% and 34.3%, or 78% of the groundwater is polluted; if drinking water standards for evaluation, the total number of wells in the evaluation, only 328 hole water quality standard of living, accounting for only 31.2% of the total evaluation, the other 2 / 3 of the monitoring wells for drinking water quality does not meet the standard of life. In order to promote integrated water resources planning and management, strengthening protection of water resources, to solve the increasingly serious water problems, carrying out extensive publicity to raise public awareness of development and protection of water resources, January 18, 1993, 47th United Nations General Assembly since 1993, each year on March 22 as World Water Day. Facing a serious water shortage, water pollution problems, we should take action and treasure every drop of water, take water-saving technology, pollution control, afforestation and other measures, rational use and protection of water resources.朗读显示对应的拉丁字符的拼音字典 - 查看字典详细内容