In the past two years, in order to improve the water quality of Xijiang River and reject the black GDP, Wuzhou has actively adjusted its industrial structure, eliminated backward production capacity, promoted enterprises to "retreat from the city to the suburbs", vigorously promoted the construction of sewage treatment plants, implemented a strict accountability system for energy conservation and emission reduction, intensified the rectification of enterprises in key industries, promoted the construction of automatic online monitoring system, and vigorously developed renewable energy projects, which has achieved remarkable results in pollution reduction.
According to preliminary accounting, in 2008, Wuzhou reduced the emissions of sulfur dioxide and chemical oxygen demand by 9,200 tons and 29,700 tons respectively, and the total emissions were 39,000 tons and 53,300 tons respectively, which did not exceed the control targets of 44,800 tons and 67,900 tons issued by the autonomous region. According to the monitoring data of Wuzhou Environmental Protection Bureau, the water quality of Wuzhou section of Xijiang River has remained above Class III all the year round.
Eliminate backward production capacity
Wuzhou is rich in bamboo resources. Some local people take advantage of this and use lime to soak pulp and add red dye to produce home papermaking, which is also commonly known as "home papermaking workshop". These workshops produce a lot of pollutants in the production process, and most of the wastewater is directly discharged into streams and rivers, which has become the source of local environmental pollution. Xijiang River, as the golden waterway of Guangdong and Guangxi, was once turbulent. Relevant departments of Wuzhou conducted a comprehensive inventory of the distribution of local small paper mills. The survey results show that there are more than 300 small earthenware workshops in 7 counties (cities) of this city.
In the tough battle of energy conservation and emission reduction in 2008, Wuzhou issued a notice to ban and shut down these enterprises within a time limit. At present, 380 small earthenware workshops have all been shut down. Twenty-two backward brick and tile enterprises belonging to kiln production have also been closed down and eliminated.
Enterprises "retreat from cities to suburbs"
With the continuous growth of the city, factories originally located in the suburbs have been brought into the urban area, especially along Xidi Road and Xinxing Road in Hexi District of Wuzhou. Battery, rosin, printing and dyeing, textile, medium and high density board manufacturing and other enterprises 14. Not only do enterprises have no environmental protection facilities in space, it is difficult to expand, but nearby residents are also troubled by pollution, and there are more and more frictions and contradictions.
In order to improve the quality of urban environment, Wuzhou implemented the project of "retreating from the city to the suburbs", requiring all industrial enterprises located in densely populated areas to move to industrial zones in the suburbs as a whole, and introduced incentive policies. For enterprises that have moved and entered the new factory area before June 5438+February 2009, land appreciation income subsidies ranging from 95% to 60% will be given.
At present, more than 0/0 enterprises such as Wuzhou Pharmaceutical (Group) Co., Ltd., Wuzhou Shuanghe Pharmaceutical Co., Ltd., Wuzhou Xinhua Battery Co., Ltd., Wuzhou Pine Resin Co., Ltd., Guangxi Swan Battery Co., Ltd. and Wuzhou Shuangqian Industrial Co., Ltd. have moved out of our city.
The reporter saw in the new production base of Wuzhou Pharmaceutical (Group) Co., Ltd. on February 23, 65438 that most of the environmental protection facilities with an investment of about/kloc-0.8 million yuan have been put into operation, and the biochemical facilities with a daily processing capacity of 600 tons have been put into use. The automatic on-line monitor connected with the monitoring center of the Municipal Environmental Protection Bureau shows that the PH value of the treated sewage reaching the discharge port is 6.33, and the COD value is 24.23 mg/L, which has been reached.
Severely crack down on enterprises that discharge pollutants beyond the standard.
In the past, due to the neglect of environmental protection, corporate pollution control was not in place and environmental pollution was aggravated. In 2008, Wuzhou stepped up inspection and punishment, launched a special campaign to rectify illegal sewage enterprises to protect people's health and environmental protection, and severely cracked down on environmental illegal enterprises that exceeded the standard.
Wuzhou has sent several teams to inspect the operation of sewage treatment plants and domestic waste landfills, and conducted special inspections on key industries such as paper industry, drinking water source protection areas, steel, chemical industry, mining and so on, and inspected the implementation of remediation measures for 54 key cases listed and supervised at the city and county levels since 2005.
After rectification, * * * inspected 630 enterprises and ordered 394 sewage units to make corrections within a time limit; Major polluting enterprises such as tengxian Hua Fu Chemical Co., Ltd. and Guangxi Cangwu Nonferrous Metal Smelting Co., Ltd. shut down; There were 29 cases of environmental violations, with a fine of 3 10000 yuan, while in 2007, only 12 cases were filed, with a fine of 70000 yuan.
Strictly control access and adopt new technologies.
On the basis of comprehensive treatment of old pollution sources, Wuzhou strictly implements the "three simultaneities" of environmental protection for all new projects, strictly implements industrial policies and environmental protection access conditions, and refuses to approve the "two high-tech and one capital" projects that do not meet industrial policies, especially those enterprises that fail to accept the "three simultaneities" as required and illegally discharge pollutants in the name of trial production for a long time, and all stop production and rectify, taking the environmental approval of projects as an important means to prevent environmental pollution and ecological damage from the source.
At the same time, Wuzhou helps enterprises to improve and optimize production technology, introduce updated scientific and technological achievements, and reduce energy and material consumption. Wuzhou Richenglin Chemical Co., Ltd. is an old chemical enterprise mainly producing rosin. Because it is difficult to treat rosin production wastewater, there is no mature treatment experience for reference at present, and oxidation pond has been used for a long time, which has great security risks. At the beginning of 2008, with the help of relevant departments in Wuzhou City, Richeng Forest Chemical Company raised 2.8 million yuan in various ways to carry out terminal treatment of production wastewater by air flotation and oil separation oxidation treatment. At present, all the equipment has been installed and entered the debugging stage. The preliminary monitoring results show that the concentration of chemical oxygen demand (COD) in the wastewater discharged by the company is stable below100 mg/L.
Wuzhou Shenguan Protein Casing Co., Ltd. is the only enterprise in China that produces collagen casings on a large scale, and its output ranks fifth in the world. In 2007, the company invested more than 10 million yuan to improve the environmental protection facilities in the old factory area, adding facilities such as sewage treatment, boiler dust removal and desulfurization, and optimizing the production process structure. At present, the emission of boiler exhaust gas is obviously reduced, the dust removal wastewater is zero, and the process wastewater reaches the standard. Due to the shortage of products, the company built a new base in the suburbs in 2008. The new base has tried out a new production technology: recycling the waste heat and air latent heat of the drying tunnel, which has obvious energy-saving effect. The company will invest 50 million yuan to promote this technology in the old factory and new base. By then, all coal-fired boilers will only be used as backup and supplementary facilities, and the exhaust emissions will be further greatly reduced.
On-line monitoring of pollution source enterprises
In 2008, Wuzhou upgraded monitoring technology and accelerated the construction of automatic monitoring system for pollution sources. At present, * *11enterprise has completed the installation and networking of 14 sets of monitoring equipment, and all of them have realized the trial operation of data networking, becoming the first city in the whole region to fully realize the annual goal of on-site construction of pollution source enterprises.
Cangwu Shunfeng Titanium Dioxide Co., Ltd. is an enterprise that produces anatase titanium dioxide by sulfuric acid method. In 2008, it invested nearly 3 million yuan to treat "three wastes". On February 23, 65438, the reporter saw through its online monitoring equipment that the PH value was 6.9 1 and the COD was 52 mg/L, both of which reached the first-class discharge standard.
Cenxi Triangle Starch Co., Ltd. is a heavy pollution source enterprise. Before the enterprise reform, the wastewater from starch production was discharged directly or through oxidation ponds, and the organic pollutants such as COD discharged into rivers exceeded 1000 tons every year, and pollution disputes were often complained. After the enterprise restructuring, we will vigorously increase environmental protection facilities and adopt new pollution control technologies. The "three wastes" have reached the first-class discharge standard, and the discharge of organic pollutants such as COD has been reduced by more than 3,000 tons in three years.