Environmental protection has become a trend towards environmentally friendly wastewater treatment and water recycling

Important measures for wastewater treatment and water recycling are far-reaching

The lack of water resources, the sustained economic growth, and the increase in population will inevitably lead to an increase in water prices. Therefore, vigorously developing wastewater reuse projects will not only save limited water resources, but also alleviate the increasingly prominent water stress conflicts. Reduce sewage discharge, reduce pollution to surrounding water bodies, improve human living environment, and save a lot of water resources. Wastewater reuse is an important measure to promote coordinated economic, environmental and social development, and there are huge business opportunities.

The membrane separation technology is used to further treat the industrial wastewater that is regularly planned to discharge the standard discharge, which can effectively remove the organic matter, color, hardness and most ions in the wastewater, and reuse it for production water, on the one hand, reduce wastewater discharge, and the other Save water resources and reduce production costs. The water quality treated by this technology can reach the industrial production process water standard, and the wastewater can be reused. This not only reduces the amount of wastewater discharged, but also reduces the amount of process water, which is of great significance for reducing environmental pollution, saving water resources and sustainable development of the entire industry. With the development of membrane separation technology, the improvement of membrane performance and the continuous reduction of the cost of membrane separation products, the use of membrane technology to realize the recycling and reuse of wastewater will become one of the effective means of wastewater treatment.

Advanced treatment and wastewater recycling project of a printing and dyeing enterprise in China

The daily discharge of wastewater in China's printing and dyeing industry is 3 to 4 million m3, which is basically discharged after routine treatment and meeting the national emission standards. It is not recycled to production, which causes water resources to be wasted; there are many printing and dyeing enterprises in production. It takes a lot of production water (usually tap water), and now the price of tap water has risen, which has led to an increase in production costs. Therefore, it is extremely urgent to promote wastewater treatment and recycling of water, which is of great significance for realizing open source and throttling in the printing and dyeing industry.

Printing and dyeing wastewater is wastewater discharged from printing and dyeing plants mainly processing cotton, hemp, chemical fiber and blended products. The printing and dyeing wastewater has a large amount of water. Each printing and dyeing process consumes 100 to 200 tons of water, and 80 to 90% of it is waste water. Textile printing and dyeing wastewater has the characteristics of large water volume, high organic pollutant content, large alkalinity and large water quality change, and it is one of the industrial wastewaters that are difficult to treat. The wastewater contains dyes, slurries, auxiliaries, oils, acids and bases, fiber impurities, sand materials, inorganic salts, and the like.

A printing and dyeing enterprise mainly undertakes the dyeing and finishing of chemical fiber and cotton textile fabrics. The dyes used are mainly disperse dyes and reactive dyes. The discharged wastewater has high concentration, high water quality fluctuation, serious organic pollution, and due to changes in dye varieties. And the large-scale use of chemical slurry makes the wastewater contain a large amount of biodegradable organic matter, which is difficult to handle. In order to open the environment, this project uses the hydrolysis acidification-contact oxidation-coagulation air-float-membrane separation integrated process to carry out advanced treatment of wastewater, with good treatment effect, good effluent quality, convenient operation and management, and low energy consumption. Due to the technical characteristics of the process, it has the advantages of low energy consumption, less man-hours, low material prices and high processing level in practical applications. And the operating costs are greatly reduced, and after recycling, the profits are considerable. . At present, the project has been put into use, with good water output indicators and low operating costs, which can be used for similar wastewater treatment projects.

Membrane separation technology market analysis and forecast

Membrane separation technology is called “water treatment technology in the 21st century”. Since its application in the field of water treatment in the 1970s, it has been widely studied and unprecedentedly developed. It has been widely concerned by water treatment workers all over the world. Theoretical research and technology development and application at different levels and levels. The membrane separation treatment technology has a high feasibility in the treatment of zero discharge technology of printing and dyeing wastewater, but it still needs to develop membrane materials with high chemical stability, pollution resistance and high flux, especially for the complex characteristics of printing and dyeing wastewater, research and development. Different membranes for printing and dyeing wastewater continuously develop organic combination of membrane technology and other technologies to promote the simultaneous development of economic, social and environmental benefits of printing and dyeing enterprises. Applications in other industry sectors also depend on continued innovation and research and development of membrane technology.

The environmental protection equipment industry enters the new normal to open the road to environmental protection

The industrialization of sewage treatment has entered a new era. Especially after the release of Water Ten, the state has paid more and more attention to environmental protection. Various laws and regulations have been gradually established and improved, which has brought a broad development space for the market. It is both an opportunity and a challenge for environmental protection enterprises. In the era of low environmental technology and weak competitiveness of most environmental protection enterprises, Shenzhen Kaikai Environmental Protection Technology Co., Ltd., relying on independent research and development of membrane concentration and membrane separation technology, provides a cutting edge for the sustainable development of many enterprises. Reliable technology and equipment have become one of the few units in China that are dedicated to the application research of membrane separation technology, which has really set off the banner of national development.

“Everything creates value for customers is the most fundamental.” In order to open up environmental protection, with the introduction of several dozens, the national environmental protection law enforcement has increased, the involvement of international technology and various types of capital, and the future development of environmental protection industry will It will be a good, environmentally-friendly, well-managed, well-managed, environmentally-friendly company that wins. In order to win in the future, environmentally-friendly enterprises must find a path that suits their own development and stand in the forefront of the industry. In the future, in order to open up the environment, it will surely maintain a keen sense of the environmental protection industry, increase the research and development and promotion of its own membrane separation technology, further enhance the core competitiveness of enterprises, and continue to go further on this road. better.

Editor in charge: Liu Bing