Treatment of polluted water from garment industry

Not long ago, Jiangsu Province, Suzhou City called a meeting of the city's 12 power plant power plant desulphurization and dust removal work on the spot due to thermal power plant in Suzhou Luzhi waste water from the printing company, cleverly used for flue gas desulfurization Chu Chen, so Feishui desulfurization process in the dust reborn, easing pressure on the sewage treatment plant discharge. This by Waste direct effect is that sulfur dioxide removal rate was 98%. Luzhi a technological transformation of this power plant, not only to bear the pressure of heavy water control greatly reduces the power plant running costs of basic materials, and that the use of thermal power plants around the dyeing of high concentrations of waste lye water as a dust collector, laying delivered to the high pH value of power plant piping systems waste lye, sodium and calcium double alkali desulfurization using new technology, can be said, wealth and effective, printing and dyeing wastewater is in this new technology played an integral role. Printing and Dyeing Wastewater Using its brand new. In China, T shirts wholesale in the shunhengchang factory. Provide high-quality polo shirts and pique polo shirts wholesale. High-quality shirts suppliers in http://www.shunheng-garment.comLuzhi power plant as the problems encountered, as, according to the relevant provisions of national environmental policies, the new construction of coal-fired power plant desulfurization facilities must be synchronized, the current is greater than 1% sulfur coal-fired power plants in 2010 desulfurization facilities built in stages. Luzhi Power Plant boiler flue gas to water film on the dust to dust, the flue gas dust removal effect better, but because of neutral and acidic pH of the natural river water as dust, sulfur dioxide removal efficiency was only 10% to 15%, and amounted to more than 80 million tons of annual consumption, but also result in increased concentration of sulfur dioxide in ambient air, affecting the health of people around, adding to the surrounding buildings, equipment corrosion. As the water absorbs dust, sulfur dioxide, dust on the set of devices and pipes causing corrosion, increased desulphurization facilities maintenance operating costs. If the pH value of discharge standards, dust thermal power plants to water daily dosage of 3 tons of alkaline material, which is a not a small fee. For alkaline dyeing wastewater as the primary desulfurization agent, dust removal rate of sulfur dioxide are high. This is derived from the power plant on the original Luzhi Film Dust systems technology transformation achieved remarkable results. They use thermal power plants around the dyeing of high concentrations of waste lye water as a dust collector, the same time, basic printing and dyeing wastewater as the primary desulfurization agent, the use of which is rich in alkaline substances absorb sulfur dioxide in flue gas desulfurization system does not appear scaling issues, safe and reliable operation. According to EPA monitoring, the facility more than 95% of dust, sulfur dioxide removal efficiency above 80%. Improved technology and equipment is the only way With the increasing environmental pollution, water pollution has also been greatly affected, water will become more valuable, rational and efficient use of water resources will be severely constrained enterprises, especially the development of printing and dyeing enterprise. Practice shows that the traditional process improvement and equipment update, is the only way for the sound development of printing and dyeing, polo shirts, enterprise. Sub-normal pre-treatment process desizing, scouring, bleaching three processes, and new high-flow cold short stack technology, not only saves water, electricity, gas and chemical raw materials, but also effectively reduce the discharge of sewage. Meanwhile, the use of some new low-temperature efficiency scouring agent, but also reduce the wastewater COD and BOD of about 20% to 50%. Enzyme desizing and peracetic acid, hydrogen peroxide bleaching process applications, can reduce pollution emissions, stack mercerization process so that the traditional process of alkali concentration was 16% alkali waste emissions. Use of small bath ratio dyeing machine of low rolling over rate and high rate of fixation of dyes, dye uptake rate increase to reduce emissions of colored water. Printing dyeing process using hydrogen peroxide, sodium nitrate, sodium perborate and other relatively non-toxic oxidant instead of potassium dichromate, to eliminate sources of pollution. Order, the promotion of low-formaldehyde and formaldehyde-free resin finishing, reduce environmental pollution caused by formaldehyde and human damage. With the development of new adhesive, pigment dyeing and pigment printing further development, because after fixing without washing, less pollution. Luzhi a technological transformation of this power plant, amazing to see the use of printing and dyeing wastewater meticulously desulfurization account, through mutual use of technological improvements, direct economic benefits to reach 4 million yuan.
Women's polo shirts
Kids polo shirts Printing and dyeing wastewater here to become an indispensable role in the improvement process, if not printing and dyeing wastewater desulfurization, desulfurization order to achieve the same effect, need to add a day spent caustic is about 5 tons, up to 1 million yuan in investment funds . The printing and dyeing wastewater was 1.5 tons per day required to join the ongoing and post-glacial acetic acid can be sent to sewage treatment plants, about three million yuan in investment funds. After the implementation of this project, access to the sewage treatment plant effluent compliance, and run relatively stable, around one million yuan in electricity savings, but also eliminates the need for a large sum exceeding the cost of emissions. The project not only reduced sulfur dioxide emissions, protect the atmosphere. Printing and dyeing wastewater using alternative natural river, but also save a lot of water. The monitoring, after dust removal and desulfurization waste water after dyeing, chemical oxygen demand can remove about 50%, annual reduction of about 450 tons of chemical oxygen demand. In addition, the project also increased the power plant's desulfurization efficiency, the annual reduction of more than 1,500 tons of sulfur dioxide emissions, improving air quality Luzhi town, also reduced the probability of occurrence of acid rain, energy saving and emission reduction to achieve a win-win situation.
At present, China mainly to the end of dyeing wastewater treatment mainly wastewater reuse after the low rate of general management approach is to transfer pollutants from one state to another state, does not really remove the pollution. Pique polo, relative to the water, the printing and dyeing wastewater treatment process is a renewable water resources, clean production technology is to use no secondary pollution control methods, the treated water to minimize emissions of harmful substances, on the wastewater treatment process of sewage generated soil for proper disposal, to prevent secondary pollution, and pollution, reduce waste and environmental impact on human, and ultimately water resource. A large number of textile printing and dyeing enterprises discharge waste water with high concentrations of organic matter, high color, pH value, we have to meet pretreatment standards before taking over the sewage treatment plant for processing into. The large number of pretreatment did not meet the wastewater was discharged directly into the wastewater treatment plant, the sewage plant secondary biochemical reactions have a strong impact, resulting in substandard water quality, leading to the sewage plant is also required to pay additional costs a large amount of excessive emissions.
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