A new type of combined quilt printing and dyeing wastewater treatment equipment

  Bedding printing and dyeing wastewater treatment equipment
  1、 Source of waste water from printing and dyeing of bedding
  The dyes used in bedding are mainly reactive dyes and cationic dyes, in addition to a small amount of disperse dyes
A large amount of bedding printing and dyeing wastewater is discharged during the production process
The bedding printing and dyeing wastewater contains a large amount of dirt, grease, salts on the textile fiber, as well as various additional polluting substances such as size, dyes, surfactants, additives, acid and alkali in the processing process
A large amount of dissolved oxygen will be consumed when the bedding printing and dyeing wastewater is discharged into the water body
If it is discharged directly without treatment, it will pollute the environment
The effluent from the treatment of bedding printing and dyeing wastewater meets the "discharge standard of water pollutants for textile dyeing and finishing industry" (gb4287-2012) “ Level 1 ” Standards

  2、 Advantages of bedding printing and dyeing wastewater treatment equipment
  1
The bedding printing and dyeing wastewater treatment equipment developed and produced by Henan Huanyuan Environmental Protection Technology Co
, Ltd
is made of carbon steel anti-corrosion treatment or stainless steel components and assembled on site
It is lightweight, easy to transport and install;
  2
It adopts FRP, carbon steel and stainless steel anti-corrosion structure, with excellent characteristics such as corrosion resistance and aging resistance, and its service life is more than 60 years;
  3
It is placed below the ground surface, and the ground surface above the equipment can be used for greening or other purposes, without building houses, heating and insulation*** The system integration is realized to the limit, and the floor area is reduced;
  4
No pollution, no noise, no odor, reducing secondary pollution;
  5
It is not limited by the amount of waste water
It is flexible and can be used alone or in combination with multiple

  6
The bedding printing and dyeing wastewater treatment equipment is equipped with PLC full-automatic electrical control system and equipment fault alarm system, which operates safely and reliably
Usually, it does not need to be managed by a specially assigned person
It only needs to maintain the bedding printing and dyeing wastewater treatment equipment in a timely manner, and the management cost is small

  3、 After sales service commitment of Henan Huanyuan Environmental Protection Technology Co
, Ltd
  After the completion of the project, we will provide detailed operation manual and free training for management and operation personnel of bedding printing and dyeing wastewater treatment equipment
After the completion of the bedding printing and dyeing wastewater treatment equipment, we will provide a half year free warranty period for the normal operation of the equipment, and various equipment faults shall be eliminated in a timely manner within the free warranty period

  After the free warranty period, long-term maintenance is promised
During the warranty period, if the operation and management personnel of the bedding printing and dyeing wastewater treatment equipment cannot eliminate the fault, they shall timely notify us, and we shall arrive at the site for treatment within 72 hours after receiving the notice

  During the free warranty period, we will make irregular return visits to assist the operation and management personnel of the bedding printing and dyeing wastewater treatment equipment to manage the wastewater treatment project

  4、 Engineering case of Henan Huanyuan Environmental Protection Technology Co
, Ltd
:
  Project name wastewater type and discharge standard of wastewater volume
  General contracting of 300 tons / day industrial class I standard discharge project of printing and dyeing wastewater of Anyang Jinxiang napkin Co
, Ltd
  General contracting for the project of Xinmi HUAFA printing and dyeing plant with printing and dyeing wastewater of 1000 tons / day meeting the local discharge standard
  General contracting for the industrial first-class standard discharge project of printing and dyeing wastewater of 3000 tons / day in Anyang Aier knitting and dyeing factory
  Technical support for domestic wastewater recycling of Guangzhou hotel with a capacity of 500 tons / day
  5、 Treatment process of printing and dyeing wastewater of bedding
  Biochemical method is a treatment method that makes use of the function of microorganisms to degrade and remove the organic matter in sewage
Due to the complete degradation of pollutants, the operation cost is relatively low, and basically no ” Secondary pollution ’ It is widely used in dyeing wastewater treatment

  Biochemical treatment technology is mainly divided into anaerobic and aerobic
Anaerobic includes hydrolysis acidification, UASB, etc; Aerobic mainly includes: biofilm process, activated sludge process, etc

  Under anaerobic conditions, facultative bacteria and obligate anaerobic bacteria degrade organic pollutants, and the final products are carbon dioxide and * * *
Anaerobic biological reaction is usually divided into two stages: the first stage is hydrolysis acidification stage, and the second stage is * * * fermentation stage
In the treatment of printing and dyeing wastewater, anaerobic treatment is often controlled in the hydrolysis and acidification stage to degrade some pollutants in the wastewater and improve the biodegradability of the wastewater
That is, the commonly used hydrolytic acidification process in printing and dyeing wastewater
Generally, the removal rate of CODCr is 20 ~ 40%, and the removal rate of chromaticity can reach 40 ~ 70%

  Aerobic technology uses aerobic microorganisms to degrade organic pollutants in sewage, and the final products are water and carbon dioxide
The commonly used methods in printing and dyeing wastewater are activated sludge method and contact oxidation method
Generally, the removal rate of CODCr is 55 ~ 88%

  Common biochemical treatment process combination of quilt printing and dyeing wastewater according to our company's experience in treating printing and dyeing wastewater for many years, it is concluded that hydrolytic acidification + contact oxidation or hydrolytic acidification + activated sludge is a relatively economical and applicable quilt printing and dyeing wastewater treatment technology, and it is not a very good treatment method to use anaerobic or pure aerobic only
Especially for the treatment of printing and dyeing wastewater with high and medium difficulty, it will be difficult to reach the standard if there is no hydrolysis acidification section
Even if the denim washing and bleaching wastewater is easy to be treated, anaerobic treatment can not only reduce the treatment cost, but also reduce the investment and facilitate the operation