In the early years, Yuyao City, Ningbo was still a small city with clear water and blue sky. However, after several years of development, this small city has also undergone earth-shaking changes, especially the water environment has suffered severe damage. The intensification of water pollution has made the fish in the small river in Yuyao city It is getting scarce and there are a lot of fish dying, and the situation is uncontrollable. For this reason, Yuyao City has strengthened its sewage management efforts by adopting pipe-type backwash filters to treat sewage uniformly. At the same time, it has called on major enterprises to install pipe-type backwash filters to prevent sewage from being discharged directly into rivers.
During the "Eleventh Five-Year Plan" period, Yuyao City took pollution reduction as an important starting point to implement the scientific development concept and strengthen the construction of ecological civilization, carefully implemented the decision-making arrangement of pollution reduction operations by its superiors, and carried out key occupations and regional pollution control operations. , Strengthen environmental laws and strengthen environmental supervision. Thanks to the joint efforts of the entire city, and under the premise of the extensive use of tubular backwash filters, the city's pollution reduction operations have achieved outstanding results. In 2007, Yuyao was named the "Top Ten Leading Counties in Provincial Energy Conservation and Emission Reduction". In 2010, Yuyao was listed as a "Provincial Ecological Civilization Construction Pilot County".
By the end of 2009, Yuyao City ’s COD emissions were 4,704.46 tons, a reduction of 3,056.54 tons over 2005, and the “Eleventh Five-Year Plan” emission reduction target was exceeded ahead of schedule; sulfur dioxide emissions were 5,118.85 tons, a reduction of 1,181.15 tons over 2005, which was completed 83.18% of the 11th Five-Year Plan emission reduction target.
Many people are wondering why the pollution problem in Yuyao City has been alleviated so quickly. After investigation by related parties, many large enterprises in Ningbo have installed tubular backwash filter equipment, which has greatly improved the quality of sewage discharge. , Those enterprises that do not have high requirements on water quality also carry out sewage recycling and reuse, which has greatly saved water resources.
I have to say that the effect of this small sewage treatment equipment is huge. The widespread application of the column-type backwash filter in Yuyao has completely saved this small city, while also maintaining the ecological environment of Yuyao. The sewage treatment equipment with outstanding pollution control effect is indeed worth promoting.