On the afternoon of December 21, 2016, Chinese President presided over the 14th meeting of the central leading group for financial and economic affairs to study the progress of 165 major projects identified in the 13th five-year plan and solve outstanding problems of common concern to the people.
The chairman stressed the need for a universal waste separation system; Biogas and natural gas as the main processing direction to solve the problems of livestock and poultry farm manure treatment and resource recovery; We will promote clean and warm northern areas in winter and other livelihood issues.
A garbage classification system will be generally implemented to improve the living environment of more than 1.3 billion people and ensure that garbage can be reduced, harmless and recycled. We need to speed up the establishment of a waste disposal system for classified distribution, collection, transportation and treatment. We need to establish a waste classification system based on the rule of law, promoted by the government, involving the whole people, coordinating urban and rural development and adjusting measures to local conditions, and work hard to improve its coverage.
Accelerating the treatment of livestock and poultry breeding wastes and resource recovery will have a bearing on the production and living environment of over 600 million rural residents, the energy revolution in rural areas, and the continuous improvement of soil fertility and control of pollution from non-point agricultural sources. We should adhere to the policy of government support, enterprise main body and market operation, take biogas and biological natural gas as the main processing direction, take local and nearby rural energy and agricultural organic fertilizer as the main use direction, and strive to basically solve the problems of manure treatment and resource utilization in large-scale livestock and poultry farms during the 13th five-year plan period.
Much starker choices-and graver consequences-in "period, the state council, the ministry of agriculture and environmental protection departments of agricultural waste treatment made clear deployment, around solve the problem of rural environment intelligence, focus on the poultry dung, dead animals, crops straw and agricultural products processing leftovers leftovers, forestry and energy crops, living garbage and organic wastes, etc., with energy, recycling, harmless, reduction as the goal, vigorously promote waste resource utilization, improve the level of agricultural sustainable development.
This is the direction and trend of development at the government level. There are subjects, forms, goals, assessments and the future.
Throughout the history, it is not difficult to see that the original single mode and even the simple combination mode can not meet the requirements of modern cities and the combination of urban and rural garbage disposal.
Garbage disposal mode:
1. Landfill is the simplest disposal form of waste treatment process. The process is relatively simple.
2. The incineration has obvious reduction, small land area, high investment cost, frequent conflicts at home and abroad, and relatively suitable cities with rich economic conditions and large population density.
Before this, simple and comprehensive treatment mode was very popular. Each family had different process disposal mode according to its own waste composition, including pretreatment + composting (blasting, heat distillation, pyrolysis, cracking, RDF, etc.) + landfill, with moderate investment and wide range of use.
The recent release of collaborative disposal documents for cement kilns has added a more feasible treatment method in the form of the process. The so-called collaborative disposal of cement kiln is a new waste disposal method proposed by the cement industry. It means to put solid waste that meets or meets the requirements of entering the kiln after pretreatment into the cement kiln, so as to realize the harmless disposal of solid waste while producing cement clinker. The treatment objects can be used for the treatment of hazardous waste, household garbage (including waste plastics, rubber, waste paper, waste tires, etc.), municipal and industrial sewage sludge, animal and plant processing waste, contaminated soil, emergency waste and other solid waste. However, radioactive waste, explosive and reactive waste, undismantled batteries, household appliances and electronic products, mercury-containing thermometers, sphygmomanometers, fluorescent tubes and switches, chromium residue, unknown characteristics and unidentified wastes are prohibited from being disposed of in a collaborative manner.
To sum up, the four treatment methods have their own advantages and disadvantages, and can complete the process of harmless transformation, reduction and recycling of garbage.
So here's the problem: this kind of manufacturing, reducing, treating, landfilling... Where is the shadow of the cycle? Where is the shadow of resource and energy? The recycling material produced by garbage, through what recycling bodyhe cycle?
Haiyin new environment after many years of experience in environmental improvement, combined with practical engineering application, combined with the experience of multiple waste treatment plants, a new process model emerged, which we call "harmless, reduction, recycling, energy".
1. Change of concept: the concept of garbage development should no longer be the three principles of "reduction, harmlessness and recycling", but a new concept of "harmlessness, reduction, recycling and energy"。Garbage from a single short form the direction of the garbage disposal to 100% of the waste harmless, form the harmless treatment mode is the root of the garbage disposal, the supposed "harmless", harmless garbage into the circulatory system, is to enter the waste treatment of closed loop mode, refers to "cycle", which is the root of the construction waste plant in the future, only the cycle of garbage disposal mode, to a greater extent from the concept of "reduction". "Energy" is not only the ultimate profit model of waste disposal, but also the most direct manifestation of the success of an enterprise and a process. Energy products should be generated directly by waste through the improvement of the process, rather than conceptual resources converted by adding energy or consuming energy. The energy refers not only to the direct products of "gas", "oil", "water" and "wood-plastic products", but also to soil improvers, air purifiers, agricultural recycling organic industrial parks and so on, and even to the export of agricultural products transformed by agricultural fertilizer, crop generation and so on, which are directly generated through the improvement of technology.
Two: construction mode and construction cycle conjecture
From the perspective of the development direction of the garbage treatment mode of many government-invested factories, such as Beijing shunyi garbage treatment plant and Beijing nangong garbage treatment plant, it can be seen that the government always invests in the optimal integration of the process and equipment within the shortest period of time. The existence deadline of rubbish factory is different according to craft can exist 5-8 years commonly, can carry on conformity ceaselessly with the appearance of new craft, new method. With the change of the government's mode of garbage disposal, the government should adopt the same ownership mode to cope with the new direction of garbage disposal.
Three: the construction of garbage plant to eliminate a single modular, single modular construction of the disease will be with the emergence of new technology, new technology and appear. The principle that rubbish plant builds is craft is simple, of equipment concise, use is reliable, can change quickly upgrade as the adjustment of craft technology.
Four: for the entity enterprise "sells the iron to exchange the money" the management way is each entity enterprise must guarantee the fundamental way, but, from the "iron" price to make an article is not enough, also should play from the "iron" concept, namely we say: "intelligent equipment".
Smart equipment has been a conceptual term for the past few years, because people think that the application of "smart" to garbage disposal is "disrespectful" to garbage. Of course, this is a joke. Nowadays, the development trend of garbage disposal must be based on improving people's health and quality of life. The application of intelligent equipment in processes or parts with relatively poor environment is the respect and liberation of human beings. Therefore, with the improvement of people's happiness index and quality of life, intelligent equipment will occupy a large proportion in the equipment of waste treatment plant in the shortest time.
From the perspective of the direction of garbage development, the change of concept requires more cooperation of technology and equipment, and in a sense, guidance and support from the government level.
The development of the "harmless, reductive, circular and energy" model requires our joint efforts.
