March 29, 2024

Ministry of Housing and Housing: National sewage treatment capacity growth will slow down

Summary of contents: Recently, the Ministry of Housing and Urban-Rural Development released the “Circular on the Construction and Operation of the National Urban Wastewater Treatment Facilities in the Fourth Quarter of 2011”. In 2011, the national sewage treatment capacity reached 136 million cubic meters per day, but the new sewage treatment capacity decreased compared with 2010. The "Announcement" pointed out that with the shift of urban sewage treatment facilities in the future to county towns, the growth of sewage treatment capacity will gradually slow down.

Sewage treatment capacity growth rate decreased According to the “Announcement” data, as of the end of 2011, the country’s new sewage treatment capacity was 11 million cubic meters per day, an increase of 8.8% over the previous year, and the growth rate was down by half from 17.9% in 2010. At present, there are 20 provinces, autonomous regions, and municipalities that have a global energy saving and environmental protection network, and each county (city) has a sewage treatment plant.

According to analysis by industry experts, at present, the sewage treatment capacity of domestic cities is nearly saturated, and the space for new sewage treatment capacity in the future will be concentrated in the county-level administrative region. According to the “Announcement” data, as of the end of 2011, there were 637 city-established cities and 1,169 county-owned sewage treatment plants nationwide, accounting for 97% and 71.6% of the total city and county seats.

Further market analysis believes that due to the direct demand from the sewage treatment plant in the sewage treatment plant construction, the above-mentioned phenomenon indicates that the market scale of new sewage treatment equipment may be limited, and it is worth looking forward to the old sewage treatment plant The equipment suppliers who have the need to transform and pull the equipment, have the technological advantages and high water quality equipment suppliers will give priority to the benefits.

According to the “Twelfth Five-Year Plan”, by the end of 2015, the daily processing capacity of the existing sewage treatment plants in the country will reach 50 million tons. By then, the effluent quality of the national sewage treatment plants will reach Grade A drinking water standards. At present, the effluent quality of most domestic sewage treatment plants is Class B, and the existing treatment plants need to be transformed with technologies such as biofilm treatment with better treatment effects.

The bottleneck of the pipeline network still constrains the release of production capacity. The “Announcement” shows that as of the end of 2011, the cumulative urban sewage treatment capacity of cities and counties established nationwide has reached 136 million cubic meters per day. Based on this, the national wastewater treatment capacity should reach 496.4. One hundred million cubic meters. However, the "Announcement" pointed out that the total amount of sewage actually treated by the urban sewage treatment plants throughout the country in 2011 was 39.313 billion cubic meters, which means that nearly 30% of the sewage treatment capacity was not effectively released.

In fact, the problem of the gap between processing capacity and actual efficiency has always existed. According to the data previously released by the National Development and Reform Commission, by the end of the “Eleventh Five-Year Plan”, China had built 2,832 urban sewage treatment plants and had a treatment capacity of 125 million cubic meters per day, an increase of 210% and 108% respectively from 2005. However, the national urban sewage treatment rate increased from 52.4% in 2005 to 77.4% in 2010, an increase of only 47.7%.

A person in charge of a large-scale sewage treatment plant in China once told reporters that the important reason for the large disparity in the processing scale and the actual treatment rate is that the construction of supporting pipe networks connecting the sewage treatment plants is seriously lagging behind. In the past five years, many urban sewage treatment planning and design have a phenomenon of “heavy factory light network”. The design scale of the treatment plant is too large, but the pipe network is not matched, which directly leads to a serious shortage of actual water supply. "A project designed for a daily processing capacity of 100,000 tons, the actual amount of incoming water is only 20,000 tons to 30,000 tons, which is a common situation."

The Ministry of Housing and Urban-Rural Development pointed out in the “Announcement” that the Ministry of Housing and Urban-Rural Development proposed specific rectification measures and deadlines last year, but only 37% of projects have been rectified. The Ministry of Housing and Construction stated that this year will further strengthen supervision and supervision and implement corrective measures as soon as possible. At the same time, this year will organize the implementation of rectification to "review" and review the implementation of the reform measures.

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