Latex processing contains many toxic components with many components that are difficult to biodegrade. Plus, latex is the most common ingredient today, but it contains many ingredients that are hazardous to the environment and human health.
Latex belongs to the form of polymers, contains polymers, but if using conventional processing methods, it is very easy to affect the surrounding environment. So how to treat rubber latex processing wastewater with high efficiency?
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Characteristics of rubber latex processing wastewater
To treat latex processing wastewater it is necessary to pay attention to its characteristics. Rubber wastewater has a pH of 4.2 – 5.2 (usually using acids to coagulate rubber latex). The rubber granules exist in the form of emulsions and colloids because they exist in different forms such as suspensions arising from freezing and rolling of the crepe.
This wastewater also contains a lot of protein, forocmic acid, N-NH3, COD content can be up to 15,000 mg/l. Organic substances in water sources are easily biodegradable.
Impact of rubber latex processing wastewater on the environment
When rubber latex processing wastewater stays for 2-3 days, protein decomposition will take place in the environment. This greatly affects the quality of domestic and production water if not treated but discharged directly into the environment.
When the rubber latex wastewater remains for too long with a high concentration of pollution, it will kill and slow down the development of aquatic species in the water. When the concentration of nitrogen and phosphorus in the water is too high, it will cause eutrophication of water sources, preventing photosynthesis for the life of algae, algae and moss. In the long run, they will cause ecological imbalance.
Why does rubber latex processing pollute the environment?
The rubber latex processing factory causing environmental pollution has received much attention and reflection from many localities across the country. Most establishments and businesses still use outdated and degraded machinery, equipment and wastewater treatment systems, and wastewater has not been thoroughly treated, causing environmental pollution at some receiving sources. such as ponds, rivers, canals, creeks. The bad smell from processing rubber latex released into the environment also affects the daily life and production of people.
Pollution from rubber latex processing companies is increasingly serious, such as Huong Ngoc Trading Co., Ltd (Quang Binh); Thua Thien Hue Rubber Joint Stock Company; Phat Hung rubber latex processing factory; Thanh Thuy Company Limited (Binh Phuoc); An Phu Thinh Co., Ltd (Kon Tum), … all pollute the environment with the common point of generating odors, toxic gases and especially black water, which seriously affects the quality of water sources.
Solution to treat wastewater from rubber latex processing
Improved from the old technological line, the solution of water treatment for processing rubber latex by the method of biological wastewater treatment without using chemicals and being able to reuse wastewater for production has created quite a lot of trust. high. Unlike other treatment lines, the non-chemical wastewater treatment method has received much attention from many businesses.
Accordingly, wastewater from the production line of seminal latex, mixed latex and cream latex before entering the anaerobic-conditioning tank must be treated in a decanter tank with many compartments. As a result, it is possible to recover rubber particles, increase the ability to settle sludge and other suspended solids to limit the impact on the rear treatment works.
Wastewater containing rubber latex often has a high odor, in order to reduce the smell, at each end of the sewer line must be equipped and provided with a cultured deodorizing microorganism. To increase the efficiency of treatment, people pump back water from the conditioning tank to the waste source with pus, cream latex to ensure the density of deodorizing microorganisms.
This phase takes place continuously to dilute the waste stream and takes place in a closed cycle that operates for 24 hours. After treatment, wastewater is guaranteed to eliminate odors, meet Class A standards and can be discharged directly into the environment.
Reuse of water after treatment
With the feature of not using chemicals such as PAC, alum, polymers, chlorine, ozone,.. Helps investors reduce operating costs significantly and is safe for operators. In particular, mud or humus can be used to grow vegetables and make fertilizer. Or it can be composted for 2-3 years into microbial fertilizer to meet the supply of fertilizer for the agricultural industry. And the water at the end of the tank, you can use it to raise fish.
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