Recently, HBIS Group Tangshan Iron and Steel Co., Ltd. completed the cold-rolling alkali-containing wastewater recovery operation at Gaoqiang Automobile Sheet Co., Ltd., marking the success of the company's independently developed "development and application of low-carbon and low-cost operation technology for cold-rolling alkali-containing wastewater" . This technology is the first in China to propose the concept of reducing carbon emissions in cold-rolling wastewater treatment systems. It is the first time to create a single-pool intermittent operation mode of a biochemical system and innovatively form a systematic method to reduce the sludge production of cold-rolling alkali-containing wastewater, the alkali-containing wastewater is low-carbon and low-carbon, industry-leading cost operation technology.
At present, water environment management has become one of the key areas for reducing pollution and carbon emissions. Reducing energy consumption of sewage treatment processes and reducing carbon emissions has become a hot topic in the industry. At the same time, reducing wastewater treatment costs can effectively help enterprises reduce costs and increase efficiency. Therefore, Water environment management has extensive social and economic benefits.
Tangshan Iron and Steel established a project team led by experts to conduct in-depth research on the process mechanism of reducing carbon emissions and operating costs during the treatment of cold rolling alkali-containing wastewater and established a low-carbon, low-cost operation technical route. Technology research and development is carried out from the four dimensions of reducing power consumption, reducing chemical consumption, reducing sludge production, and realizing the reuse of cold-rolling alkali-containing wastewater. In the research on the extremely difficult cold rolling wastewater treatment process, adhering to the concept of green development, the concept of reducing carbon emissions in the cold rolling alkali-containing wastewater treatment system was proposed for the first time, ensuring that the alkali-containing wastewater meets the standards for discharge and reuse, and achieving low cost and high efficiency. operation and be at the forefront of national water environment and environmental protection management. The first innovative single-pool intermittent operation mode of the biochemical system reduces the dosage of chemicals and nutrient salts, and the sludge production volume drops by 19% year-on-year, which is equivalent to a reduction of about 100 tons of carbon emissions per year. Optimize the ammonia nitrogen reduction process, add a secondary reverse osmosis process, and realize the reuse of cold rolling alkali-containing wastewater, saving approximately 610,000 cubic meters of new water every year.