Energy Saving And Emission Reduction Is One Of The Main Lines Of Sustainable Development Of Leather Industry.

< p > environmental protection is a key issue related to the survival and sustainable development of leather industry, and there should be no slack on this issue.

In the future, with the introduction of national environmental protection policies and standards, the environmental protection requirements of enterprises will be more stringent and the pressure of environmental protection will be greater.

With the continuous withdrawal of environmental protection enterprises from the market and the elimination of backward production capacity in place, high-quality resources continue to flow to large and medium-sized enterprises with good environmental protection and smooth operation, which is a good guarantee for the sustainable development of the industry.

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< p > pollution problems related to leather industry in China < /p >

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The study of P > 1 and tannery cleaner production process make the pollution be eliminated as far as possible in the production process, less or non polluting material, and get the maximum output with its minimum input; < /p >

< p > 2, < a href= "http://www.91se91.com/news/" > tannery sewage < /a > treatment technology. If the drainage is not surface water, it is a municipal sewage treatment plant. The current sewage treatment technology should be able to solve the pollution problem in the leather industry. The main reason is that some engineering technicians who are engaged in pollution control technology do not know much about the nature of tannery wastewater; that is to say, the domestic pollution control technology and the economic capacity of tannery are not very coordinated.

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< p > 3, emission standards, due to the particularity of tannery sewage, the difficulty of governance is relatively large. Then, according to the development of the times and the development of science and technology, reasonable and timely discharge standards for sewage should be put forward, otherwise, the normal development of leather industry will be affected.

From this point, it is mainly reflected that the tannery industry is already a meager profit era, and the competition is fierce. If the sewage discharged by sewage treatment should meet the first grade standard, the investment will be too large and the burden on the back will be bigger, so it will be difficult to develop the technology and equipment of leather making.

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< p > 4, chromium recovery and utilization research, metal chromium resources in South Africa are the largest reserves, only enough to exploit hundreds of years, while chrome in leather processing process accounts for about 1/3 of production, and in the leather processing process, 1/3 has been discharged with sewage.

There is no problem in the recovery of waste chrome solution in sewage treatment. The problem is that tannery production is not willing to use after recycling. It will have certain effect on the quality of finished leather. There is a study on the processing of chromium from recycled chromium into tanning production or in other fields of research and development. In this regard, we need the government's policy and financial support.

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"P > 5, < a href=" http://www.91se91.com/news/index_c.asp "> tannery sludge < /a > comprehensive utilization research and development, leather tanning industry each produces about 50 million tons of tannery sludge.

In terms of environmental protection, there is almost no demand for tannery sludge discharge. Only the sewage discharge requirements of tannery industry reach the "comprehensive discharge standard for sewage". What can be found is the standard requirement for agricultural sludge, that is, the sludge with chromium content less than 1000mg/kg.

Tannery sludge contains about 70% of organic matter. If there is no chromium in tannery sludge, its utilization prospects will be very broad.

Each kg of dry sludge contains about 3000 calories of heat, which can be recycled. However, if chromium is used, the Cr3+ will be pformed into Cr6+ when burning, and Cr6+ will be more toxic. Tannery sludge can also be treated by anaerobic fermentation and biogas energy recovery. After the anaerobic fermentation, tannery sludge is also a very good agricultural fertilizer. It can be used in farmland to prevent the land from hardening, and can also be added directly to ferment as an agricultural fertilizer.

But if chromium is not recycled, the data we test are chromium containing 23000mg/kg dry sludge in tannery sludge, and in the field, the highest chromium content in the fruits of crops will directly affect the health of the human body.

Therefore, the premise is that chromium must be recycled.

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< p > > span style= "font-size: 10.5pt" > font face= "song style". In order to control the pollution problem of leather industry, China has issued a series of rules and regulations: < span lang= "EN-US" > < o:p > < < > > < > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

< p > August 2010, the provincial government issued the notice on strengthening the pollution prevention and control work in leather industry, and made sure that the leather industry has implemented the supervision policy of "responsibility for pollution remediation work in leather industry".

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< p > January 2011, the goal and duty of our province is called the most stringent leather control policy in China.

Subsequently, the provincial government issued a heavy punch to the leather industry, and issued a more stringent "2011-2015 year total reduction scheme for the main pollutants in the leather industry", to clarify the leather industry "12th Five-Year" emission reduction target task, so that the whole leather industry environmental protection string tighter.

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The energy saving and emission reduction work of < p > 2012 a href= "http://www.91se91.com" > leather industry < /a > has been advancing. Energy saving and emission reduction in 2013 will still be the main task in the sustainable development of leather industry.

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