The biggest requirement of the environmental protection industry is that the environmental protection of enterprises must keep up, and the promotion of energy saving and emission reduction by new technologies is truly realized. The environmental protection industry will be the future development direction. So let's let Xiao Bian introduce you to related issues.
Corporate environmental awareness is greatly enhanced
Shanxi Province Liulin County Wangjiabu Coal Industry Co., Ltd. is an integrated coal mine with an annual output of 600,000 tons of No. 8 raw coal. It is easy to use coal for self production. However, this coal mine is used for heating three 4-ton steam boilers, and nearly 4,000 tons of coal burned each year are all purchased from Shaanxi.
Liu Liming, head of environmental protection at Wangjiabu Coal Co., Ltd., told reporters in early January that although coal is produced from coal, high sulfur coal is produced. In order to control coal-burning pollution and contribute to the environment, each year they purchase low sulphur coal with sulfur content of around 0.26 and 7% of ash for heating. He also told reporters: "In recent years, with the gradual increase in the province's environmental protection efforts, the company's environmental awareness has gradually increased, and the company's current environmental protection concept is to spare no effort to do a good job of environmental protection."
Not only did they actively use low-sulfur coal, the reporter also saw on the spot that all three of their four-ton steam boilers were fully equipped with bag dust removal and lime-gypsum desulfurization equipment. “Like this 4 ton small steam boiler, the state does not impose a requirement to install desulphurization facilities. Even if installed, simple facilities can guarantee the effect of desulphurization and dust removal. This practice of this enterprise is rare.†Provincial Environmental Protection Department Supervision Deputy Researcher Qu Guansheng said.
Liu Liming also told reporters that the final refit of the bag filter was 2.73 million yuan, and the higher investment also resulted in a considerable return. The operation cost of the steam boiler was greatly reduced, which promoted the healthy development of the company's environmental protection.
In the county of Shanxi Shengguang Coking Gas Co., Ltd., the coking wastewater was upgraded and advanced treatment project site, the discharged wastewater passed through 13 links, large and small, and finally reached standard water, and then returned to the coking plant after purification. Recycling . The total investment of the project completed and put into operation last year was 52 million yuan. The construction scale is 85 cubic meters per hour. The wastewater treatment and recycling system can save 600,000 tons of water each year. Wang Junliang, deputy general manager of the company, said: “Our project uses four stages of eighteen treatment processes, two more than the previous process, one is a pretreatment section, and the other is a fluidized bed treatment section. The treated water quality is better and higher."
In recent years, with the gradual increase of environmental protection efforts in Shanxi Province, the company’s environmental awareness has been significantly enhanced. From state-owned enterprises to private enterprises, taking the initiative, investing large amounts of funds in building environmental protection facilities, and defending clear water and blue sky have become a common consensus.
New Technology Promotes Energy Saving and Emission Reduction
In the face of the greatest environmental pressure in history, enterprises have not only actively increased their investment in environmental protection, but also adopted the latest technology to ensure environmental protection standards.
In the early stage of construction, Zhongyang County Houtong Science and Technology Breeding Co., Ltd. fully considered the issue of environmental protection and adopted a series of new technologies to save energy and reduce emissions, thereby reducing costs and increasing efficiency.
The company is a leading enterprise in the industrialization of agriculture in Luliang City, Shanxi Province, with 50,000 live pigs on hand. During the project construction process, they conducted technical cooperation with countries such as Denmark, Germany, and the United States. The entire production line has adopted the most advanced domestic and foreign sewage treatment systems, automatic environmental control (temperature control and humidity control) systems, and automatic spray disinfection and dust reduction systems. Automated devices such as automatic feeding systems enable scientific control of production processes. In particular, the fecal energy heating project in cooperation with the Danish Green Vein Company has greatly reduced the heating costs in winter and improved the utilization rate of manure resources.
The reporter saw at the scene that all the large-scale storage ponds were covered with cover membranes without obvious smell of feces, which greatly reduced the spread of diseases caused by the breeding of mosquitoes and flies. It is understood that the company uses a new generation of blisters technology in the pens, which integrates technologies such as manure fermentation and heating, solid-liquid separation, and full fermentation of anaerobic ponds. This greatly reduces the volatilization of ammonia in manure and reduces the The impact of the environment, while maintaining the nitrogen content in the sewage, effectively isolate the rainwater and the sewage, reduce the increase of the amount of sewage generated due to a large amount of rainwater, and play a positive role in preventing the infiltration of sewage and protecting the groundwater.
Similarly, during the Central Environmental Protection Inspectorate last year, the Shanxi Wuling Coal Char Co., Ltd. of Fuyang City was exposed due to problems such as the excessive discharge of coke oven gas and the slow progress in the treatment of desulfurization and bid reform. At present, the company has invested 16.8 million yuan for coke oven flue gas desulphurization project construction. Company Chief Engineer Li Hongjin said that this system adopts the most advanced production technology and equipment in the country. After normal operation, one can use the temperature of the flue gas to produce steam. It can produce 10 tons of steam per hour and save two tons of raw coal. On the other hand, ammonium sulfate can also be produced as a fertilizer product. The annual economic income can reach 10 million yuan. After the operation, the coke oven flue gas has reached the standard emission, which is lower than the new environmental protection standards. In the future, Wuling Coal Coke will continue to increase investment in environmental protection and ensure that all environmental protection indicators achieve long-term, stable, and standard compliance.
Optimize the development environment to promote transformation
Many cities in Shanxi Province are booming due to coal. While the coal industry dominates GDP, over-relying resources form an industrial structure with a single coal and a single structure, with high consumption, high pollution, low output, and low efficiency. The industrial model has affected sustainable development and structural pollution is very prominent.
In an interview, the reporter learned that Changzhi has become the only city in the province to be selected as one of the first industrial transformation and upgrading demonstration cities in the country due to its good basic conditions, strong work, and reforms and innovations. The city has initially formed a number of industrial transformation and upgrading projects. The typical experience and practice is to optimize economic development with environmental protection, and to force the transformation and development of the enterprise with environmental protection.
The “Huaan Coking†flue gas-controlled and desulfurization desulfurization and desulfurization project, which is located in Jixian County, Changzhi City, Shanxi Province, is a microcosm of the transformation and development of Changzhi City in response to environmental protection. After the company completed the coke oven flue gas desulphurization control project, the concentration of nitrogen oxides in the flue gas was controlled below 500 mg/m3 last year, and the concentration of sulfur dioxide was less than 30 mg/m3.
He Zhongwei, Director of the Department of Atmospheric Environment Management of the Shanxi Provincial Environmental Protection Department, said that since last year, Shanxi Province has been resolutely disposing of “scattered†companies and more than 7,400 “scattered†companies in accordance with the principle of “consummation of batch, standard batch, and elimination of batchâ€. Being eliminated, the problem of pollution around a group of people has been solved, and the environment and market space have been released for advanced production capacity, and industrial enterprises have been embarked on the road of green development.
Wang Junjie, director of the Environmental Supervision Department of Shanxi Province Environmental Protection Office, also believes that through the implementation of iron-steel pollution control in the entire province of Shanxi, in particular, the Central Environmental Protection Inspector and the provincial-level environmental protection inspector rectification last year effectively promoted the development of the ecological environmental protection work in Shanxi Province. We have given full play to the role of environmental protection in reversing the economic transformation and provided good opportunities and impetus for promoting green development of enterprises and advancing supply-side structural reforms. The province has made great progress in advancing coking and iron and steel industry, rectifying and upgrading the iron and steel industry, and a large number of “scattered†companies have been eliminated. A large number of high energy-consuming and highly polluting enterprises have withdrawn from the market.
Since the beginning of last year's winter, the ambient air quality in Shanxi Province has improved significantly compared to the previous year. The good weather has benefited from the persistent comprehensive air quality control of the environmental protection department, and it also benefits from the active cooperation of all sectors of society. According to the latest data from the Environmental Protection Agency of Shanxi Province, the average concentration of PM2.5 in the province from October 1, 2017 to January 18, 2018 fell by 27.6%, and the amount of sulfur dioxide decreased by 49.2% compared with the same period of last year.
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