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Shaoxing Printing And Dyeing Sludge Treatment &Nbsp; Turning Waste Into Treasure Can Grow Vegetables.

2012/4/6 10:30:00 75

Yesterday morning, a van loaded with dye and sludge was driven into the sludge treatment plant of Zhejiang Xin Sheng Industrial Limited by Share Ltd in Lizhu town of Shaoxing county.

These untreated sludge came from a dyeing and printing enterprise in Ke Yan Street, Shaoxing County, reaching 16.28 tons.

After treatment, the sludge is turned into a recyclable dry mud.

In the sludge treatment plant, the reporter saw a huge piling up, filled with treated dry mud, surrounded by walls and roofs with canopy.

The dry mud is not much different from the common yellow mud and black mud in the field.

In the corner of the factory area, a small piece of land was reclaimed and planted with vegetables.

Ren Jifang, the head of the sludge treatment plant, told reporters that this is their experimental site. One of them was treated with printing and dyeing sludge and the other 50% ordinary soil.

Ren Jifang said that vegetables and vegetables could not grow without treated sludge.

After treatment, the printing and dyeing sludge is not only able to grow vegetables, but also does not need to be fertilized.

Can vegetables grow from the printing and dyeing sludge? Ren Jifang said, they are going to send vegetables to professional inspection institutions to check and see if their heavy metal content has exceeded the standard.

If it is not exceeded, it means that the treated soil can be used for landscaping and landfills.

Li Zhu is the hometown of flowers and trees. If it can be used, there will be no problem with the outlet of the sludge.

It is understood that

Zhejiang

Xin Sheng Industrial Limited by Share Ltd in 2010 and Shanghai Tongji University, Zhejiang Sci-Tech University, invested 5 million 500 thousand yuan to set up a professional treatment and disposal of printing and dyeing sludge plant.

The research direction is printing and dyeing sludge process modification, so that after printing and dyeing sludge processing, there will be no two pollution.

The technology is divided into four stages: sludge concentration, digestion, dehydration and disposal. By adding modifiers and mechanical pressure filtration methods, the moisture content of printing and dyeing sludge is reduced from about 80% to about 55%, and the moisture content of the dyeing and finishing sludge reaches below 30% by the stacking of professional shed.

The sludge treatment plant was put into operation in September last year.

Shaoxing county government to encourage the

enterprise

We further developed the use of printing and dyeing sludge and rewarded 300 thousand yuan.

In order to make the printing and dyeing sludge "turn waste into treasure", the sludge treatment plant will also treat dry mud for brick making.

In this way, in addition to digestion and treatment of the printing and dyeing sludge of his company, the factory also processes about 100 tons of dyeing and printing sludge from other printing and dyeing factories every day.

A few days ago, Qian Li Liang, vice chairman of the Li Zhu Town People's Congress, visited the village and entered the enterprise. He realized the situation and immediately contacted a brick and tile factory. The brick and tile factory can digest 10 tons of dry mud every day.