Author: Zhong Wang’s
On May 1st, Beijing officially implemented the new garbage classification regulations. At the press conference on epidemic prevention and control held in Beijing on May 6th, Zhang Yan, deputy director and spokesperson of Beijing Urban Management Committee, introduced that after the implementation of waste classification, other wastes used for incineration will be reduced, and the tight incineration balance can be alleviated. At the same time, qualified units are encouraged to install kitchen waste water control, impurity control and local treatment equipment, so as to minimize waste generation at the source.
The statement that the garbage disposal capacity is "tightly balanced" will inevitably make people who are concerned about urban garbage disposal and environmental governance feel tight. In fact, almost every city faces the problem of tight garbage disposal capacity. It has been proved to be an effective way to reduce the pressure of garbage disposal and reduce the negative impact of garbage on the environment by implementing garbage classification and treating garbage according to its types. Recently, Shanghai and Beijing have successively implemented compulsory garbage sorting methods, which is a powerful response to the problem of "garbage besieged city".
It is another idea to alleviate the problem of garbage disposal by technical means to encourage the installation of kitchen waste on-site treatment equipment in relevant places. Compared with centralized treatment, on-site treatment of kitchen waste can promote waste reduction, reduce treatment cost and avoid secondary pollution from the source. However, due to various factors, people rarely see this equipment in their daily lives, and the related technology is not popular enough.
Policy advocacy will help accelerate the landing of kitchen waste local treatment equipment. As early as 2012, the "Shanghai Municipal Domestic Waste Sorting Facilities and Equipment Configuration Guidelines (Trial)" proposed that vegetable farms and bazaars should be equipped with local crushing, dehydration or biochemical treatment devices for kitchen waste when conditions permit. The new version of the Regulations on the Management of Domestic Waste in Beijing also mentioned that if it reaches a certain scale and has the conditions for on-site treatment, it should build a standard on-site treatment facility for kitchen waste in accordance with the relevant provisions of this Municipality, and treat and recycle kitchen waste on the spot. In addition, Shenzhen, Ningbo, Guizhou and other places also have related experiments and practices.
In some people’s understanding, kitchen waste on-site treatment equipment is still a new thing, and some units are worried that they do not have the installation conditions, or they are worried about the cost of equipment. Therefore, on the basis of policy advocacy, we need to take concrete and feasible ways to guide and innovate the concept of society and the public. For example, the government put forward specific standards and suggestions for the installation of kitchen waste on-site treatment equipment, implemented subsidies in production and sales, and supported industries to establish a positive profit-making model, thus accelerating the popularization of kitchen waste on-site treatment technology.
Earlier, it was also reported by the media that the operation of kitchen waste local treatment equipment is often accompanied by odor discharge. Although the machine has the function of odor prevention, it is sometimes difficult to completely erase the smell. In addition, the large-scale treatment equipment consists of secondary sorting table, garbage crusher, microbial fermentation bin, waste gas treatment system, sewage filtration system, etc., occupying a large area. This has put forward higher requirements for the site where the unit installs equipment, which not only meets the needs of on-site garbage disposal, but also allows the equipment to operate fully, and can not affect the normal life of people around it.
The effective operation of kitchen waste on-site treatment equipment also depends on refined management. After the treatment of kitchen waste, it also involves the problem of how to treat and use the output. As far as the original intention of technical design is concerned, after the kitchen waste is treated on the spot, its output can be used as fertilizer. Giving full play to the value of the output "turning waste into treasure" will also affect the promotion of kitchen waste on-site treatment equipment.
Encourage qualified units to install kitchen waste on-site treatment equipment, which opens up new ideas for urban domestic waste treatment. Of course, the application of good technology depends on people’s acceptance. In the process of promotion, it is necessary to strengthen publicity and let the society know and understand the advantages of on-site kitchen waste treatment equipment; It is also necessary to strengthen policy support, take practical measures to improve the technological environment, and prevent enterprises and residents from having a heavier economic burden.
In the final analysis, improving the treatment of municipal solid waste is related to people’s daily life and is also a manifestation of being responsible for future generations. Relevant government departments and people should bear the relevant responsibilities and work hard for a long time to create a good atmosphere for garbage sorting, make the environment drier and make life better. (Zhong Wang’s)
关于作者