History of sewage treatment and environmental protection

Future development trend

Economic development is coordinated with the development of sewage treatment

Economic development and water environmental pollution is proportional, that is to say, the faster the speed of economic development, the more serious the corresponding water environmental pollution. People's life is inseparable from water, industrial and agricultural production development is inseparable from water, discharged whether domestic sewage or industrial wastewater will bring different degrees of pollution. Economic development is the need for capital investment, to protect the environment from pollution, also need money, when funds are limited, it is necessary to economic development and environmental protection of the two hard indicators of organic coordination, can not cause the loss of one or the other or the situation. If economic development loses environmental protection, the environment will be seriously polluted, and no amount of money will be invested to clean the original environment. The negative lessons of foreign countries warn us that Japan's Ise Bay is polluted by coastal petrochemical production wastewater, which causes serious losses of aquatic products in Ise Bay and produces the consequence of being inedible, and it is difficult to restore the environmental condition before pollution after years of treatment. This also fully proves the close relationship between economic development and environmental protection. To avoid the further deterioration of environmental pollution, we need to take three measures:

(1) Capital construction projects should adhere to the synchronous implementation of the production line and pollution control. The environmental quality assessment report must be available when reviewing the feasibility study report of the project, the design of the production line and the pollution control design should be carried out simultaneously, the construction of the production line should be carried out simultaneously with the construction of the pollution control facilities, the production line should be put into operation at the same time as the pollution control equipment, and the production line without the "three simultaneous" conditions would rather not be on the production line, rather than let the new project start blindly. So as not to cause environmental pollution.

(2) Start from the reform of the production process, solve the pollution from the source, clean production, production of green products, such as cyanide-free electroplating, fluorine-free refrigeration, phosphorus free washing powder production, etc., are from the process to solve the pollution measures.

(3) For the production line that has been built and put into operation, if it is fined for pollution caused by no pollution control measures, it can not simply return the fine to the polluter, but put forward the requirements for treatment within a time limit, and help him develop an operable implementation plan to fundamentally solve the pollution situation, otherwise the polluter will pay pollution fines year after year without treatment. Because the penalty of eight out of ten policy is too favorable.

Support the development of domestic environmental protection industry (sewage treatment industry)

(1) Localization of sewage treatment equipment

Although the sewage treatment equipment has a certain professional personality, but also has the commonality of other industry equipment, as long as you understand the use of sewage treatment equipment, the role of the equipment in the treatment process and the technical "parameters" that the equipment should have, you will produce qualified applicable sewage treatment equipment, "Seven Five" period, National science and technology research topic 59-03-04-04 "Belt filter press localization research", the project results have been widely used in the domestic sewage treatment industry, its effect has reached the level of similar foreign products, for the country to save a lot of foreign exchange quota, thus indicating that the localization of sewage treatment equipment is feasible, many of the domestic large and medium-sized enterprises are machinery manufacturers, They have the basic quality of the machinery manufacturing industry, and then combine the professional characteristics and requirements of sewage treatment equipment to produce high-quality sewage treatment equipment is completely OK. This channel is also a good way for the machinery industry to seek survival in the future, and the state will give some preferential environmental protection industrial policies, then this enterprise will thrive, and at the same time reduce the number of foreign equipment purchased. More importantly, it fundamentally solves the actual problem that foreign equipment needs foreign professional maintenance personnel for maintenance and there are no spare parts after the elimination of foreign equipment.

(2) The development of sewage treatment instruments

The implementation of modern management of sewage treatment plants, can not be separated from sewage treatment instruments, and the domestic instruments used in our country are borrowed from chemical and thermal instruments, because the sewage treatment profession is different from the chemical and thermal industries, so the instruments often have problems in the operation and management of sewage treatment plants.