In September 2017, the five departments jointly announced the Notice on Issuing the Catalog of Preferential Corporate Income Taxes on Energy Saving, Water Saving and Environmental Protection Equipment.
A few days ago, the person in charge of the Department of Policy and Law of the Ministry of Environmental Protection answered questions from the "Special Catalog for Corporate Income Taxes for Environmental Protection Equipment (2017 Edition)" (hereinafter referred to as "Equipment Preferential Catalog"), introducing in detail the background and meaning of "Equipment Preferential Catalog" , Characteristics and the benefits to be achieved and how they are to be implemented.
China's waste plastics processing enterprises has been the focus of environmental supervision, the industry insiders described environmental protection has become the waste plastic processing business line of life and death!
The 2017 edition of "Equipment Catalog" contains a total of 24 categories of equipment in six categories, of which water pollution control equipment and air pollution prevention and control equipment are closely related to waste plastics processing and utilization enterprises.
Today, Xiao Bian summarizes the waste plastics companies that purchase those environmentally friendly equipment can meet environmental requirements but also to obtain tax credit.
1, water pollution prevention and control equipment
Wastewater is the main source of waste plastics processing and utilization process, mainly generated in the waste plastic cleaning process.Water pollution prevention and control equipment will inevitably become the standard waste plastics recycling companies.
Membrane bioreactor (MBR), Is a new technology of wastewater biological treatment combined with membrane separation and biological treatment technology, mainly divided into three categories: aerated membrane-bioreactor (AMBR), extraction membrane-bioreactor (EMBR) and solid-liquid separation Type membrane - bioreactor (SLSMBR, referred to as MBR).
Membrane bioreactor main features:
1, high efficiency of pollutant removal, water quality is good
2, adaptable, impact-resistant load
3, short process, system equipment is simple and compact, small footprint
4, easy to achieve automation and control, easy maintenance, save manpower
5, the system starts fast, water quality can quickly meet the requirements
Sludge dewatering machine Is a continuous operation of sludge treatment equipment, mainly divided into: belt filter dehydration machine, centrifugal dehydrator, plate and frame filter press dehydration machine and stack screw sludge dewatering machine.
Precipitated sludge dewatering, flocculant selection and matching operation is the key, good flocculation, sludge dewatering is relatively smooth.
Ultra-magnetic separation of water purification equipment Through magnetic powder, coagulant and micro-magnetic coagulation of pollutants in the water, the pollutants and magnetic powder are aggregated into magnetic flocs, and then the high-strength magnetic field generated by the ultra-magnetic separation equipment is used to make micro Flocculation overcomes the fluid resistance and its own gravity, resulting in rapid directional movement, adsorbed on the surface of the disk, through the equipment to achieve slag separation device and the separation of water, so as to achieve the purpose of purifying water quality.
The magnetic sludge is reclaimed by the magnetic powder recovery equipment to separate the magnetic powder from the sludge. The separated magnetic powder can be reused to participate in the next flocculation process to achieve recycling. The separated sludge has low water content without concentration Sent directly to the dehydration system for dehydration.
The above three kinds of equipment can be used for industrial wastewater treatment, waste plastics processing and utilization of wastewater treatment companies should also be based on the specific production of the design of specific wastewater treatment and recovery processes and processes.
2, air pollution control equipment
Air pollutants from waste plastics recycling are mainly dust and volatile organic compounds (VOCs).
Dust mainly comes from the crushing process of waste plastics.
Baghouse Also known as filter-type dust collector, is a dry-type high efficiency dust collector, which is a bag filter element made of fiber woven fabric to capture dust particles in the dust gas dust removal device.
Fabric filter cloth bag filter is the key, good performance of the filter cloth, in addition to a specific density and permeability, but also should have good corrosion resistance, heat resistance and high mechanical strength.
Electric bag composite dust collector , The electric dedusting and bagging two mature organic combination of technology, learn from each other, give full play to the electrostatic precipitator in the first electric field can be a large number of dust and dust bag dust particle size and specific resistance is not sensitive to the advantages of low emission concentration, Is to meet the more stringent emission standards for a new generation of dust removal equipment.
A variety of plastics in the high temperature extrusion and injection process will volatilize a certain amount of volatile organic compounds (VOCs).
VOCs adsorption recovery unit , Is the use of a variety of solid adsorbent exhaust pollutants in the adsorption purification method is currently the most widely used treatment technology.Adsorption method is usually divided into two types of physical adsorption and chemical adsorption, and VOCs exhaust purification mainly Physical adsorption method.
Bioremediation VOCs plant , Through the metabolic activity of microorganisms, VOCs in the exhaust gas into simple inorganic substances (CO2, water, etc.) and cell components of the process, which is divided into bio-washing method, biological filtration and biological trickling filter three categories For different composition, concentration, gas volume VOCs have their own suitable biological purification system.
VOCs burning device , Refers to the direct and auxiliary combustion of VOCs gas, or the use of appropriate catalysts to accelerate the chemical reaction of VOCs, and ultimately to reduce the concentration of VOCs, so that it is no longer a hazardous treatment.
This year, the special chapter of the 19 th National Congress of the Communist Party of China set forth the special tasks of promoting green development and focusing on resolving outstanding environmental issues, etc. The just-concluded Central Economic Work Conference also stressed that in the next three years we should lay the foundations for pollution prevention and control and major pollution The total discharge of substances decreased substantially, and the overall quality of ecological environment improved.
China's waste plastics processing and utilization of enterprises is actually a practitioner of circular economy, but due to the secondary pollution caused by the production and processing process to the environment caused by the burden of waste plastics companies how to reshape the green image so that the plastic recycling is not only in the economic interests And in line with the requirements of the environment, from 2018 onwards, so that waste plastic people become the forerunner of environmental protection.
