The production of sewage treatment equipment in China began in the middle and late 1970s. At that time, the standardization, completeness and serialization level of the products were very low, and there were fewer stereotyped products. Since the 1990s, the relevant state departments have carried out technological transformations on major sewage treatment equipment manufacturing enterprises, improving manufacturing capacity and manufacturing level, and the production level of special equipment for urban sewage treatment and general equipment with it has been Greatly improved.
At present, all or major equipment of 5, 10, 25, 50 tons of urban sewage treatment plants can be realized in China. Among them, China's microporous aerator, high-intensity aerator, belt filter press, all kinds of grille decontamination machine, scraper, scraper, aeration brush, aeration blower, large sewage pump Submersible electric pumps, etc., have basically been able to adapt to the domestic market demand, and some products are exported. According to Dongguan environmental protection experts, in terms of product design, from the daily processing of 50,000 tons to 500,000 tons of sewage sludge lifting system, mechanical filtration and sedimentation system, aeration treatment system, sludge dewatering treatment system and other equipment in China, has been equivalent International level in the 1980s and the ability to provide complete sets of equipment. However, in terms of biogas power generation systems and online monitoring systems, there is still a big gap between China's equipment and developed countries. In some of the latest international technical equipment in the 1990s, there is still a gap to be filled. In terms of product level, the efficiency of single-machine equipment, such as blowers and pumps, which consume more energy, is close to the international level in the 1980s. The overall level of the package is equivalent to the level of the international 1970s and 1980s.
Compared with developed countries, China's sewage treatment equipment has a big gap. The main issues are as follows:
1. The variety structure is backward, the variety is small, and the development ability is weak. Among the many products, the general mechanical products and primary products account for a large proportion, and the modernized level of machine, electricity and instrument integration equipment is less or in the initial stage. Except for large-scale environmental protection enterprises, most companies lack the self-development ability of new products.
2. The product quality is poor and the technical level is low. 35% to 40% of the products are equivalent to the international level of the 1960s and 1970s. About one-fifth of the current sewage treatment equipment in China is a restricted production or a phase-out product, and about two-fifths are products that need improvement.
3. The contradiction between production and demand is prominent. The comprehensive production capacity of sewage treatment equipment in China is far from meeting domestic demand.
4. The comprehensive benefits of related companies are generally low. Except for a few companies, most sewage treatment equipment manufacturers have poor economic returns.
5. The equipment package and project contracting capacity are weak. There are very few enterprises that can undertake the contracting and equipment of sewage treatment projects. Most enterprises focus on the development and manufacturing of finished products, and engage in single-machine production and sales, so that China's sewage treatment capacity and project general contracting capacity Weak.
6, product foreign exchange is unstable. Although China's sewage treatment equipment has exports, in general, the technical content of export equipment is not high, the categories, varieties and regions of exports are narrow, and the competitiveness in the international market is not strong.
7. Operation training, after-sales service, etc. need to be strengthened.
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