In more than 4,000 waterworks above county level, 98% of them still use traditional water treatment technology. If the water source is polluted by heavy metal ions and organic compounds, the traditional technology seems to be inadequate. [News Encyclopedia: Sanitary Standard for Drinking Water]

 

Scholars believe that at least 20% to 30% of water plants need to launch advanced treatment technology as soon as possible.

 

The survey shows that the quality of urban water supply network in China is generally inferior, with 50.80% of gray cast iron pipes, 13% of ordinary cement pipes and 6% of galvanized pipes that do not conform to the national standard.

 

Old pipe network leaks seriously and often bursts. From the water quality point of view, secondary pollution is easy to occur.

 

From 2000 to 2003, 4232 secondary pollution incidents occurred in the water quality of pipe network in 184 large and medium-sized cities in China. Secondary pollutants are mainly microorganisms, which can be killed by boiling water.

 

In China's capital cities, there are thousands of water tanks or reservoirs in each city, and secondary pollution incidents of water tanks frequently occur in recent years. The supervision of secondary water supply facilities in cities is weak.

 

No city in mainland China realizes direct drinking water. Boiled water can kill microbial pollution, but it cannot remove organic pollutants and heavy metal ions.

 

Many organic pollutants accumulate in human body to a certain extent, which may cause cancer, teratogenicity and mutation.

 

The national census data in 2009 is difficult to produce

 

The stock of environmental protection water sector soared yesterday, is it related to this report?

 

Yesterday, the news that "the qualified rate of tap water is only 50%" spread quickly on the Internet. This news comes from the latest cover report of Caixin New Century Weekly-"The Truth of Tap Water".

 

According to the report, in the second half of 2009, the Water Quality Center of the Ministry of Housing and Urban-Rural Development conducted a national census in order to "roughly understand" the water quality of urban drinking water in China. This is the largest test in recent ten years, covering more than 4,000 waterworks in cities above county level in China, and getting the closest drinking water quality data. But up to now, the Ministry of Housing and Urban-Rural Development has not officially released the tap water quality data obtained from this survey. A number of people in the industry who are close to the authoritative department said that the actual pass rate of the test results they learned is about 50%.

 

As of 8: 30 last night, there were more than 950,000 Weibo on the topic of "only 50% qualified rate of tap water" in Tencent Weibo.

 

This group of reports also stirred up ripples in the capital market. Yesterday, the environmental protection and water sectors both ranked in the forefront of the A-share increase list, and these two sectors were related to "water treatment" and "residential water use". Some analysts believe that it is precisely because of concerns about water safety that some funds smell the potential business opportunities of relevant listed companies, such as companies producing sewage treatment equipment, drinking water equipment and water supply and drainage technology development, which may face rare opportunities.

 

Express quick visit

 

Tap water in the main city of Ningbo is up to standard

 

Most of the major counties (cities) meet the standards

 

Correspondent Wei Guanghua Reporter Yu Ying

 

Yesterday, the reporter contacted Wang Yifen, the stationmaster of Ningbo Testing Station (hereinafter referred to as "Ningbo Water Quality Testing Station") of the National Urban Water Quality Monitoring Network. She said that the water quality in the main urban areas of Ningbo has all reached the new national mandatory standards, and most of the large urban areas have also reached the new mandatory standards.

 

Ningbo Water Quality Testing Station is located in the compound of Ningbo Water Supply Corporation. Wang Yifen said: "Although it is located in the compound of the water supply corporation, the two units are relatively independent. The data we detected are directly reported to the Ministry of Housing and Urban Management, and the data will be fed back to the water supply companies. At present, the water quality in the main city of Ningbo has reached new mandatory standards last year, and most major counties (cities) have reached new standards. "

 

He Jianrong, director of the water supply business department of Ningbo Water Supply Corporation, said: "The quality of tap water in Ningbo is one of the best in the province, because the water source is very good, and all of them come from reservoirs, such as Baixi, Hengshan, Jiaokou, Zhougongzhai, Huangtan and Xixi, which supply water to the main city at the same time. In order to ensure that the reservoir water flows to the waterworks without pollution, all tunnels and steel pipes are used for long-distance and totally enclosed transportation.

 

"In the test list, Dongqian Lake Water Plant and Maojiaping Water Plant, which have the best water quality, each have a daily water production capacity of 500,000 tons, which is enough for urban water in the main city. After entering the water plant, the selected water purifying agents are mainly liquid chlorine, coagulant aid, permanganate, etc. These water purifying agents can not only effectively sterilize, but also minimize the side effects on human health. "

 

There is still a long way to go before the tap water from the waterworks flows to the residents' homes. The safety and hygiene of this road is also very important. At present, the water supply network in the main urban area of Ningbo adopts new materials-ductile iron pipes and steel pipes, which are stronger and more durable than the traditional concrete and cast iron pipes, and have less corrosion rate.

 

Ningbo Water Supply Corporation transforms the old pipe network in batches every year. Since last year, it has also transformed the secondary water supply of the old middle and high-rise residential buildings in urban areas, and transformed the pipes, water pipes and pressure pumps in the residential areas to prevent secondary pollution. It is estimated that the comprehensive transformation of the water supply of middle and high-rise residential buildings will be completed within three years.

 

The 2009 census data has not been released

 

Caixin New Century Weekly pointed out a paradox at the beginning of the report: almost all experts and scholars in the drinking water industry believe that there are "safety hazards" in the water quality of Chinese cities; At the same time, almost no water plant failed in self-test and self-test.

 

At the end of 2007, the National Development and Reform Commission, the Ministry of Health, the Ministry of Construction, the State Environmental Protection Administration and other ministries and commissions jointly issued the "National Urban Drinking Water Health and Safety Guarantee Plan", clearly stating: "The qualified rate of drinking water sampled in recent years in the country is 83.4%."

 

The data are based on more than 2,000 water samples, which are only water samples from key cities or a few cities in China, and even do not include water plants in prefecture-level cities. "Can't represent the national situation." Song Lanhe told Caixin reporter. Song Lanhe is the chief engineer of the Urban Water Supply Quality Monitoring Center of the Ministry of Housing and Urban-Rural Development (hereinafter referred to as the Water Quality Center of the Ministry of Housing and Urban-Rural Development). The Ministry of Housing and Urban-Rural Development is the competent department of drinking water in China, and the water quality center is responsible for monitoring water quality.

 

In the second half of 2009, the Water Quality Center of the Ministry of Housing and Urban-Rural Development conducted a national census and cross-tested, but the data has not been officially released. Within the scope permitted by discipline, Song Lan made a partial introduction-"The national census found that more than 1,000 of the more than 4,000 water plants were unqualified. The results show that there are different degrees of problems in most places. " Since 2009, there has not been much improvement in the quality of urban tap water.

 

A number of industry insiders close to authoritative departments told Caixin reporters that the actual qualified rate of the test results they learned was about 50%. "More than 1,000 unqualified companies" is just a broad statement to dilute the impact. To this, Song Lanhe has neither confirmed nor falsified. He only said that he was "firmly on the side of experts" between many experts' opinion that the quality of tap water is not optimistic and the optimistic figures of local governments and water plants.

 

What is more worrying is that in addition to urban waterworks, there are tens of thousands of small waterworks supplying villages and towns, which are more backward in technology and more difficult to ensure the safety of water sources. At present, there is no comprehensive data on the water quality of these small water plants.

 

The new water quality standard is "on paper"

 

It is reported that from July 1 this year, China will enforce the latest drinking water standards. The new standard is in line with international standards, with 106 indicators, which is basically the same as the most stringent water quality standard in the world-EU water quality standard. However, this mandatory standard is just an armchair strategist, because there is no substantive punishment and it is not feared by local governments and water plants. Since the new standard was issued, local governments and water plants have made little progress in water treatment process transformation.

 

According to the new standard and the analysis of relevant industry experts, the quality of drinking water can be divided into several levels:

 

—— In Beijing, the capital, especially in the main urban area within the Fourth Ring Road, the advanced treatment technology is widely used in water plants, and most of the water network pipelines are updated, so the distance from direct drinking water is the closest.

 

—— In Shanghai, Guangzhou, Shenzhen, Hangzhou and other large cities, some water plants have been equipped with advanced technology, but due to old pipelines in the main city, direct drinking cannot be realized at present.

 

—— In other provincial capitals (second-tier cities), only a few cities have launched some advanced treatment processes. Due to water sources, pipelines and other reasons, some urban water plants are problem water plants.

 

-Thousands of prefecture-level cities and county-level cities, except a few cities, have a large number of problematic water plants due to poor water sources and lack of advanced water treatment technology.

 

In the report, several reasons and hazards of unqualified tap water are sorted out.

 

In the view of scholars, the most fundamental measure to cure the disease of tap water is to purify the water source. Radical treatment of water quality requires the system design at the national level, which is connected with the water environment treatment planning of rivers, lakes and seas. The urgent task and practical choice is to upgrade the process of waterworks. In addition, the tap water pipeline needs immediate investment.

 

Song Lanhe said that at the national level, the management system of secondary water supply and water quality testing should be solved through system design.

 

Many scholars have called for the establishment of professional water quality monitoring institutions independent of local water plants, and changed the self-inspection of water plants into third-party inspection. Water quality testing data should be disclosed to the whole society in a timely manner.

 

Environmental protection water in A-share market is among the top gainers

 

Is it related to this report?

 

Caixin New Century Weekly's special report on "The Truth of Tap Water" also stirred up ripples in the capital market. Yesterday, the environmental protection and water sectors both ranked in the forefront of the A-share increase list, and these two sectors were related to "water treatment" and "residential water use".

 

Guozhong Water Affairs Co., Ltd. is a company mainly engaged in "building and operating urban municipal water supply and drainage projects and projects, ecological environment treatment projects, development, production and sales of related water supply and drainage technologies and equipment". Yesterday afternoon, the company's share price soared and its daily limit rose rapidly. Another water company, Ba 'an Water, was locked in the daily limit in the morning. At the same time, companies such as dongjiang environmental protection, Yongqing Environmental Protection and so on also closed at the daily limit, and the environmental protection and water sector became the leading sectors in Shanghai and Shenzhen stock markets yesterday.

 

However, although it seems that the relevant reports directly triggered the stock price changes of some companies, more industry analysts believe that the surge of water and environmental protection sectors on that day had its own internal reasons, which had little relevance to Caixin New Century Weekly.

 

Ji Feifei of AVIC Securities believes that from the news point of view, the Chinese government website published the "Notice of the General Office of the State Council on Printing and Distributing the National Urban Sewage Treatment and Recycling Facilities Construction Plan in the Twelfth Five-Year Plan" yesterday morning. According to the plan prepared by the National Development and Reform Commission, the Ministry of Housing and Urban-Rural Development and the Ministry of Environmental Protection, by 2015, all cities and counties in the country will have centralized sewage treatment capacity, and the urban sewage treatment rate will increase to 85%, and the county sewage treatment rate will reach 70% on average. The utilization rate of reclaimed water in urban sewage treatment facilities is over 15%. This directly benefits related listed companies. On the other hand, Li Keqiang, Vice Premier of the State Council, said in Brussels on May 3 that during the 12th Five-Year Plan period, China's investment in environmental protection will exceed RMB 5 trillion, and the development of environmental protection industry has great potential. In fact, last Friday, the environmental protection sector was among the top gainers, and the rise of this sector should not be directly related to the report of Caixin New Century Weekly. With the arrival of the summer water consumption peak, investors are expecting the rising water price everywhere, which is also the internal cause of the rising water sector.