"13th Five-Year" period, the rural wastewater treatment market space from the building plus five years operating costs a total of about 140 billion. Faced with such a large market space, most enterprises point out that the rural sewage treatment market looks like a delicious cake, but it's very hard to eat it in the mouth. In this regard, Professor Wang Hongchen, vice president of the Environmental College of Renmin University of China, said in an interview with the Chinese water network that, although there are many problems in the rural sewage treatment market, the technical route of rural sewage treatment has gone off, which is the biggest problem at present.
Under the background that the urban sewage treatment market tends to be saturated, the rural sewage treatment market is considered to be another blue ocean for water enterprises. E20 Research Institute shows that during the "13th Five-Year" period, the rural sewage treatment market space from construction to five years of operation cost is about 140 billion. In the face of such a large market space, many companies have been eager for a fight, ready to make a big fight. Most enterprises also point out that the rural sewage treatment market looks like a delicious cake, but it's very hard to eat it in the mouth. In this regard, Professor Wang Hongchen, vice president of the Environmental College of Renmin University of China, said in an interview with the Chinese water network that there are many problems in the rural sewage treatment market, which is very challenging. He believes that although many problems exist, the rural sewage treatment technology route is biased, which is the biggest problem at present.
Rural sewage treatment technology should be suitable for rural areas
At present, only about 10% of the country's rural sewage treatment facilities have been built, and the operation of the construction is less than 10%. Almost all of the rural sewage has not been treated directly into the water body or infiltrated into the underground, which has become one of the most important sources of water pollution.
"Why most of the built facilities do not run? There are financial problems and regulatory issues, but the biggest is technology. Wang Hongchen believes that "the technology of selecting rural sewage treatment should be the most important consideration in the future, and all the inconvenient operation and inconvenient operation in the countryside are not suitable for use."
In terms of operation of sewage treatment process, the smaller the scale of the facility is, the more difficult it is to operate steadily. A sewage treatment plant that handles hundreds of thousands of tons per day will have great inertia once it runs steadily, and it will be difficult for it to fail. It must be clearly realized that a rural sewage treatment facility with only tens of tons per day must be strictly controlled for its stable operation. Therefore, we say that compared with urban sewage treatment, rural sewage treatment is more dependent on technology and technology. Wang Hongchen said.
In recent years, Wang Hongchen often investigates rural sewage treatment in various places. He admitted that several counties often turn down to see a normal running facility. Some enterprises to enter the field of engineering cost, value, ignore the day after operation. From the point of view of enterprise, integration, equipment, modularization, intelligence and buried, these words are really attractive. Only in this way can we realize the rapid construction in large quantities and make a profit. However, why should we stand in the angle of the stable operation and stand in the perspective of the industry, why should they be integrated? Why should it be equipment? Why should it be modularized? Why does it have to be buried? How to realize the intelligentization? The purification tank in Japan belongs to the buried equipment, but it is only used in a single household, the household facilities are called "grooves", the village level treatment facilities are called "stations", and there are not one of the thousands of village level sewage treatment stations built in Japan.
Wang Hongchen believes that the rural sewage treatment technology should have three basic characteristics: one is free operation and low maintenance, that is, no people often stare at operation, and this kind of free operation should not be based on self-control, and the maintenance and maintenance quantity should be low. This is the requirement that rural technology must have; two is the anti impact load, the rural sewage water quantity. Water quality early in the evening a day three night without water, high load, early in the morning. Wang Hongchen pointed out that it is not clear how to load the equipment, how can it operate stably? Three is the low energy consumption, according to the conservation of quality and the conservation of energy basic principle, aeration aerobic treatment technology, village scale tons of water electricity consumption must exceed 1 degrees, "so high electricity consumption, how do not use low energy technology?"
只有满足以上条件，才是适应农村特点的可持续污水处理技术。经过三年多的研究和论证，王洪臣带领尚川水务团队研发出了循环生物滤池（WRBF ）技术，并获得国家发明专利。WRBF 技术实现了免运营、低维护，具有极强抗水质水量冲击负荷能力，并且运行能耗非常低，目前已经在北京、湖北以及内蒙等地20多个农村在稳定运行。
Only by meeting the above conditions is the sustainable sewage treatment technology adapted to the rural characteristics. After more than three years of research and demonstration, Wang Hongchen led the water team of Shang Chuan to develop the technology of the circulating biofilter (WRBF), and obtained the patent of the national invention. WRBF technology has been operating in more than 20 rural areas in Beijing, Hubei and Inner Mongolia.
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