Sanyou Company: Converting sewage into clean water, writing a new chapter
As an important basic industry of the national economy, the quality of development of the cement industry is directly related to the quality and efficiency of national economic construction. At present, the cement industry is facing problems such as overcapacity, insufficient market demand, increasing production costs, and increasing environmental pressure. At the same time, as a major carbon emitter, the cement industry actively implements the "double carbon" requirements is also the only way to serve the national strategy and achieve green and low-carbon transformation.
As the Jinyu Jidong Cement low-alkali cement clinker production base and the leader of high-quality low-alkali cement products in the Beijing-Tianjin-Hebei region, Tangshan Jidong Cement Sanyou Co., Ltd.(hereinafter referred to as Sanyou Company) adheres to the concept that lucid waters and lush mountains are invaluable assets, and fully realize that in the new era, cement companies need to abandon the traditional development model and actively explore new development paths to achieve sustainable development of the industry. Among them, the treatment of sewage generated by the cement industry is an important part of achieving green development of the industry.
Second-line sewage treatment
The "Sewage Discharge Standards"(GB8978-96) and "Urban Miscellaneous Water Quality Standards for Urban Sewage Reutilization"(GB/T18920-2002) clearly require that all sewage must be discharged strictly up to standard. In order to ensure production water discharge meets the standards, truly meet the requirements of relevant regulations, and greatly improve the utilization efficiency of the company's water resources, Sanyou Company has established a complete set of wastewater discharge rules and regulations, and comprehensively strengthened the treatment of sewage in the factory. Purification and treatment work. Through such a series of measures, good results have been achieved.
Front-line sewage treatment
The company invested 2.125 million yuan to build two advanced sewage treatment systems, using biofilm method and biofilm method +MBR treatment process respectively. Elastic fillers with unique properties are placed in the treatment tank, and an adequate oxygen source is continuously provided through efficient fans. In the device, organic matter can be effectively adsorbed by microorganisms and deeply degraded, so that the water quality of sewage can be completely purified. The comprehensive treatment flow of the wastewater treatment facilities in the whole plant can reach 70 tons/hour. After production wastewater and domestic sewage are treated by this system, the effluent quality not only fully conforms to the Level 1 a standard of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants", but also perfectly conforms to the "Urban Miscellaneous Water Quality Standards for Urban Sewage Reutilization"(GB/T18920-2002) requirements. The treated reclaimed water can be widely used in many key locations such as power generation system replenishment, circulating water system replenishment, on-site greening, and road spraying. Through this recycling method, the factory's demand for new water is greatly reduced. This not only effectively improves the utilization rate of water resources, but also effectively reduces production costs. It has become a very critical link in the process of sustainable development of the company and has laid a solid foundation for the company's green development and long-term progress. foundation.
Not only that, this series of measures has also greatly reduced the emission of pollutants, achieved the goal of environmental remediation and the reuse and zero emission of sewage. According to the industrial water price, 3.2 yuan/ton of inflow water is implemented, and the sewage treatment operation cost is 0.3 yuan/ton of inflow water. The daily sewage generated on site is 360 tons/day per day, and 360 tons of sewage are treated and reused every day. If calculated based on 300 days of operation per year, it can create direct economic benefits of 313,200 yuan for the enterprise every year.
