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The current state of water quality and technology development for water pollution control in China

机译：中国水质现状及水污染控制技术发展

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This paper summarizes and presents an overview of the current state of water pollution, as well as recent progress and the potential future development of water pollution control technology, in China. Although China has made significant strides in water environmental protection over the past decades, analysis reveals that water pollution in the nation is still not sufficiently controlled, with a number of surface waters currently suffering varying degrees of pollution. High nitrogen and phosphorous concentrations in many great lakes have caused eutrophication problems, and the frequency of blue algal bloom has increased. Likewise, river pollution has not been effectively controlled. Nitrogen, phosphorous, organic compounds, and heavy metals are ubiquitous in China's rivers, with up to 80% of urban rivers contaminated to varying degreesa situation that continues to deteriorate. Next, eutrophication has occurred in many large reservoirs, with numerous toxic substances negatively affecting water quality. Finally, over-exploitation has caused groundwater quality to deteriorate, and pollution from heavy metals, nitrates, fluorine, and random organic matter has become a primary water quality issue. To resolve these complex environmental problems, water pollution controls and quality improvement technologies have been rapidly developed in China in recent years. Ecological restoration, biological disposal, advanced chemical oxidation, high-efficiency adsorption, and flocculation technologies have been especially prominent in these efforts. Not only have these developments introduced practical innovation to the core technologies, they have also prioritized their systematic integration and application. In order to prevent and control the pollution of lakes and rivers, improve general water quality, and ensure the safety of drinking water supplies, China must perform systematic research on management, pollution control and treatment, ecological restoration, and related water treatment and purification technologies over the next 5 to 15 years through a series of major technology initiatives. These programs will supply the scientific foundation and technological support for achieving the optimum improvement of China's water quality.
机译：本文概述并概述了中国水污染的现状，以及水污染控制技术的最新进展和潜在的未来发展。尽管过去几十年来中国在水环境保护方面取得了长足进步，但分析表明，中国的水污染仍然没有得到有效控制，许多地表水目前受到不同程度的污染。许多大湖中氮和磷的高浓度引起了富营养化问题，蓝色藻华的发生频率增加了。同样，河流污染也没有得到有效控制。氮，磷，有机化合物和重金属在中国的河流中无处不在，多达80％的城市河流受到不同程度的污染，并在不断恶化。接下来，许多大型水库都发生了富营养化，许多有毒物质对水质产生了负面影响。最后，过度开采导致地下水质量恶化，重金属，硝酸盐，氟和随机有机物的污染已成为主要的水质问题。为了解决这些复杂的环境问题，近年来，中国水污染控制和质量改进技术得到了迅速发展。在这些努力中，生态恢复，生物处置，先进的化学氧化，高效吸附和絮凝技术尤为突出。这些发展不仅将实用创新引入了核心技术，而且还优先考虑了其系统集成和应用。为了预防和控制湖泊和河流的污染，改善总体水质，确保饮用水的安全，中国必须对管理，污染控制和处理，生态修复以及相关的水处理和净化技术进行系统的研究。在接下来的5到15年中，通过一系列重大技术计划。这些计划将为实现中国水质的最佳改善提供科学依据和技术支持。

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