How to increase production without increasing pollution and ensure the effective days of air quality above Grade 1 throughout the year is a problem that chemical plants are trying to solve this year. Recently, the factory has taken effective measures to improve the atmospheric environment from the aspects of environmental protection system management, environmental protection facilities operation and environmental protection engineering construction.

At the beginning of the year, the chemical plant issued the Regulations on Environmental Protection Management, which clearly defined the environmental responsibilities of personnel at all levels, the reporting procedures of pollution accidents, the comprehensive treatment of three wastes, the management of civilized factory areas, environmental monitoring and index control, and effectively achieved "whoever pollutes is responsible and whoever pollutes is treated", effectively mobilizing the enthusiasm of all employees to attach importance to environmental protection, participate in environmental protection and rectify environmental protection. In terms of the operation of environmental protection facilities, each system should do a good job of equipment filing, dismantle or stop using equipment with unqualified environmental protection indicators, stop the operation of environmental protection facilities that have been put into operation in a planned way, and carry out regular maintenance to ensure that all kinds of tail gas meet the standards. In the process of project construction, the factory strictly implements the "three simultaneities" system, based on the transformation and upgrading of the old system and the construction and commissioning of the new project, refines and decomposes the environmental protection indicators, and strives to achieve economic, social and environmental benefits. Since last year, the plant has successively completed the "trinity" transformation of the tower-tank-vessel of the sulfuric acid dry absorption system, the transformation of the sulfuric acid anode protection heat exchanger and the dry absorption process, and the transformation of the sodium sulfite evaporation process, so that the sulfur dioxide flue gas is absorbed more fully and the tail gas emission is greatly reduced. At present, a new 530,000-ton sulfuric acid system under construction has adopted a number of new technologies and equipment with independent intellectual property rights. After the project is completed and put into production, it will realize stable, efficient and automatic continuous production, creating an environmental protection "bright spot" in the history of sulfuric acid production of the company. In addition, the chemical plant actively cooperates with universities to study the treatment of low-concentration sulfur dioxide, and another 700,000-ton sulfuric acid system has also begun to be designed. By then, the smelting flue gas will be fundamentally treated.

Nanjing Jinling Chemical Plant, a subsidiary of Nanjing Chemical Industry Corporation, is a designated manufacturer of chemical plastic stabilizers and chemical raw materials for electronic industry. The enterprise covers an area of 43,000 square meters and has more than 700 registered employees. The total assets of the enterprise are 75 million yuan and the annual production capacity is more than 20,000 tons. The registered trademark of the product is "Lion", and the main products are produced by advanced standards of similar products abroad, which are high-quality products of the Ministry of Chemical Industry, Jiangsu Province and Nanjing City. The output value rate of high-quality products is over 90%. Granular lead oxide and dust-free composite stabilizer are new national products. Dust-free composite stabilizer is an updated product of heat stabilizer in PVC processing, which has good technological performance and good environmental protection function. The enterprise has passed the quality system certification of GB/T 1900Z-ISO9002, with reliable product quality and in-depth environmental protection work. Environmental protection is a great event for the benefit of future generations, and it is also the top priority of this factory over the years. Starting with the rectification of "running, running, dripping, leaking, dirty, chaotic and poor", in recent years, it has turned to relying on scientific and technological progress and adopting cleanliness.

Promoting the sustainable development of enterprises —— On-the-spot report of environmental protection work of Nanjing Jinling Chemical Factory Co., Ltd. established in September 2003. The predecessor of the enterprise is Nanjing Jinling Chemical Plant, which is the backbone manufacturer of plastic additives and electronic additives in China. The enterprise covers an area of 43,000 square meters and employs 556 people. The main products of the enterprise are lead oxide, composite lead salt stabilizer, HA stabilizer, dibasic lead phosphite, tribasic lead sulfate, lead silicate, lead stearate and other products, with an annual production capacity of 20,000 tons. The main products are produced according to the advanced standards of foreign similar products, which are national, provincial and municipal quality products. Since the Eighth Five-Year Plan, the company has always adhered to the fundamental position and starting point of "renovating the site, treating public hazards internally, protecting workers' health, treating pollution, and treating public hazards externally for the benefit of future generations" and actively carried out environmental protection work. Taking the treatment of lead-polluted environment as the top priority for enterprises' survival, the combination of electrostatic dust suppression and WK microporous dust removal technology is adopted to treat lead dust pollution, and the combination of inclined plate precipitation, microporous infiltration and biochemical technology is adopted to treat lead-containing wastewater, and gradually it turns to relying on scientific and technological progress and adopting clean technology to organize production. 1991~ In 2003, with the continuous expansion of the production scale of enterprises, the total annual discharge of lead in wastewater decreased from 962Kg to 150Kg. The enterprise has successively won the titles of "National Advanced Environmental Protection Enterprise", "National Advanced Chemical Environmental Protection Enterprise", national-level "Quality-benefit Enterprise", "Clean and Civilized Factory" of Ministry of Chemical Industry, "Standard Enterprise in Yangtze River Basin in 20001~ 2002", "Civilized Unit" in Jiangsu Province and "Water-saving Enterprise" in Nanjing, etc., and has been awarded "Advanced Environmental Protection Enterprise" for many times. In recent years, the company has stipulated the quality responsibility of environmental protection work in the procedure document of implementing ISO9002 standard, which is well documented. The enterprise has also established a three-level management network of technology, quality and environmental protection, and each production section has a set of sewage treatment devices. At the same time, environmental protection management should be included in the assessment of economic responsibility system, and the total amount of industrial pollution emissions should be linked to economic indicators. Make the environmental protection work of enterprises gradually embark on standardized and quantitative management. Since the Eighth Five-Year Plan, Jinling's chemical industry has developed rapidly. Enterprises always adhere to the "three simultaneities" and strictly implement the environmental impact assessment and environmental protection approval and acceptance system for new reconstruction and expansion projects. In recent years, the enterprise has invested nearly 4.5 million yuan to treat many projects, such as general waste gas, boiler water mill dust removal, lead oxide tail gas, noise in production plant area, sewage outlet, etc., and all of them have passed the standard acceptance organized by the municipal and district environmental protection bureaus. Implementing cleaner production is an effective way to control pollution from the source. First, combine technological transformation to realize clean production, and adopt new processes and equipment with high efficiency, low consumption and less pollution. For example, compared with the original powdered lead stearate, the flaky lead stearate produced by the new process not only saves energy consumption, but also fundamentally reduces the generation of pollutants (COD, lead, suspended matter and dust). The second is to strengthen management in a targeted manner and minimize pollutant emissions through measures such as on-site transformation. For example, introducing waste water directly discharged from HA workshop into boiler room as water for water mill dust collector can save tap water cost by about 6,543,800+500,000 yuan per year; In 2003, the wastewater treated by the main drainage system was recycled as domestic and production water, saving about 654.38 million yuan of water fee every year. The third-stage drying tail gas directly discharged from the hard salt workshop in the past was introduced into the first-stage dryer through the pipeline, which increased the inlet temperature, not only saved energy, but also reduced dust pollution. While strengthening environmental management and implementing cleaner production, Jinling Chemical Industry has not forgotten to implement environmental education. In recent years, enterprises have organized cadres, party member and league members of the whole factory to use voluntary labor after work and holidays to build a large lawn 1200 square meters, transplant more than 500 trees, add more than 60 street lamps and floor lamps to the main roads of the whole factory, and transform the lines and pipe networks of the whole factory; Install air conditioners for production teams in several departments. The production and working environment of workers has improved, and their enthusiasm and enthusiasm have increased. The booming production and sales have promoted the great development of enterprise economic construction. (with photos) Clean production in Jinling Chemical Plant with beautiful environment has brought a good production environment to Jinling employees.