Pollution Management Of Rubber Plant
I. Suggestions For The Control Of VOCs Emissions In The Rubber Products Industry:
Low or VOC-free clean production processes and raw and auxiliary materials with environmental labels should be used. Raw rubber should comply with the provisions of GB8081. The unorganized VOC emissions from adhesives should not exceed 25% of the solvent usage. The usage of materials containing volatile organic compounds such as rubber compounding agents, rubber pastes, and adhesives should be recorded and relevant records should be kept.
The workshop should be sealed. There should be no visible unorganized VOC emissions from workshop doors, windows, air towers, etc.
Production processes and equipment that generate VOCs, such as mixing (including feeding, mixing, discharging, and cooling), vulcanization, and rubber pastes, should be sealed. If sealing is not possible, local or overall exhaust gas collection systems and centralized purification treatment devices must be set up. The setting of exhaust hoods in the exhaust gas collection system should comply with the provisions of GB/T16758.
The purification treatment device should be started before the production process facilities and run simultaneously, and be turned off later.
II. Waste Gas Treatment Method Of Rubber Factory
A large amount of hydrogen sulfide waste gas is produced during the production process of rubber products. Hydrogen sulfide is a strong neurotoxin and has a strong stimulating effect on mucous membranes. Hydrogen sulfide is flammable and can form an explosive mixture when mixed with air. It can cause combustion and explosion when exposed to open flames or high heat. It reacts violently with concentrated nitric acid, fuming sulfuric acid or other strong oxidants, causing an explosion. The gas is heavier than air and can spread to a considerable distance at lower levels. When exposed to open flames, it can cause backfire.
Hydrogen sulfide waste gas brings a lot of trouble to factory workers and surrounding residents, especially in hot summer, the stench is everywhere. It not only poses a great threat to the health of factory workers and surrounding residents, but also causes serious pollution to the surrounding environment. Therefore, sufficient attention should be paid to the treatment of rubber waste gas, and the selection of rubber waste gas treatment equipment should also be carefully considered.
III. The Purification Effect Of Rubber Products Waste Gas Treatment:
The emission concentration of nitrogen oxides, sulfuric acid mist, hydrogen chloride, hydrogen fluoride, hydrogen sulfide, sulfur dioxide and other waste gases is lower than the secondary emission standard limit of the “Integrated Emission Standard of Air Pollutants” for pollution sources; the reduction rate of excessive emissions is greater than 80%, and there is basically no odor around the exhaust outlet by olfactory sense. The odor concentration meets the national secondary emission standard.
The waste gas is collected through pipelines and enters the spray tower. The spray tower can wash away dust and part of the waste gas. After the spray treatment, it enters the photo-hydrogen tower. The photo-hydrogen tower uses photocatalytic oxidation decomposition and biological liquid washing to treat organic waste gas. The rubber waste gas treatment equipment irradiates nano-titanium, a nano-catalytic material, through nano-photon tubes to produce a photocatalytic reaction, and at the same time generates a large amount of hydrogen peroxide, oxygen ions, OH- and a large number of negative ions to achieve the purpose of purifying the air.