TEXTILES/LAUNDRIES
WATER AND WASTE WATER TECHNOLOGY FOR THE TEXTILE INDUSTRY
We have solutions for the treatment of waste and process water in the textile industry. This water often contains organic materials (CSB, BSB5) such as acids, bases, salts, heavy metals and dyes.
The regulations governing the treatment of waste water from the textile industry are becoming ever stricter. Our processes have been proven many times over and ensure water treatment which conforms to these laws.
End-of-the-pipe solutions are more and more being replaced by partial current treatment and process water recovery. Resource recovery makes sense economically as well as ecologically and is playing a greater role than ever in water technology.
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References
MEWA INDUSTRIE-TEXTILIEN GMBH
ACKER TEXTILWERKE
HTS DEUTSCHLAND GMBH & CO. KG
MEWA INDUSTRIE-TEXTILIEN GMBH · GROSS KIENITZ, GERMANY
RECYCLING OF EFFLUENTS FROM LAUNDRIES BY ENVOPUR® MEMBRANE TECHNOLOGY
The waste water from work wear cleaning are pumped over a selfcleaning sieve machine into a buffer tank.
In the first filtration unit, the Envopur® MFI microfiltration, all emulsified and suspended components are separated. These components are concentrated to a minimum quantity of waste. The clear filtrate contains all unused components of the detergent. That is why the microfiltration filtrate is ideal to be reused for the first and the main stage of the washing program. For the last stage of the washing program rinsing the water is treated in a second step, the Envopur® NFI nanofiltration.
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ACKER TEXTILWERKE · SELIGENSTADT, GERMANY
ENVIFLOC®
FLOCCULATE THE RIGHT WAY
The Acker Textile Works in Seligenstadt, Germany, manufactures technical textiles used in the automobile and construction industries. The production waste water is highly organically contaminated. Since 2000 the company has been using an Envochem® chemical-physical waste water plant that treats the water in multiple steps. The waste water is first rendered alkaline and then treated in a mixing tank with Envifloc® adsorbants and flocculants. After sedimentation and filtration the waste water meets the official standards necessary for release in the canalization or recycling. The resulting sludge is pre-dehydrated with a chamber filter press after dehydrating it to 75%. with a sludge drier.
| Plant type: |
Envochem® COL 2000 |
| Products: |
Envifloc® 1100, Envifloc® 5110, ECSO-product 8635 |
| Processes: |
chemical-physical waste water treatment and filtration |
| Operations: |
continuous |
| Waste water type:: |
rinse and waste water from textile manufacture |
| Capacity: |
20 m3/day |
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Envochem® chemical-phsyical treatment of wash and waste water
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HTS DEUTSCHLAND GMBH & CO. KG · HEIDENHEIM, GERMANY
TREATMENT OF EFFLUENTS FROM LAUNDRIES
BY ENVOPUR® UFI 2.000 NA MEMBRANE TECHNOLOGY
Plant Description:
The company boco in Heidenheim, Germany, provides laundry services for professional clothing. The laundry produces highly contaminated waste water which must be processed to meet the standards of appendix 55 of the German waste water ordinance:
- Fine straining
- Waste water buffer
- Neutralization
- Removal of heavy metals with organic sulfide compound
- Ultra-filtration incl. CIP-Station
- Cooling of waste water with heat exchanger
The waste water treatment plant Envopur® is designed for continuous automated operation. The programmable logic controller manages all processes, including the various steps for cleansing the ceramic membranes. A touch screen controls operation and displays a visual representation of the processes.
Capacity (filtrate quantities):
| Ultra-filtration plant UFI: |
40 m³/d |
with a 2nd module,
can be increased to: |
80 m³/d |
Chemical load:
COD:
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up to 4000 mg/l |
| Total Hydrocarbons: |
up to 500 mg/l |
| AOX: |
up to 2 mg/l |
| Copper: |
up to 5 mg/l |
| Lead: |
up to 1 mg/l |
| Zinc: |
up to 27 mg/l |
The plant technology produces treated waste water which meets or is better than the required standards defined by appendix 55 of the German waste water ordinance.
| Concentration: |
> 1 : 100 (residual matter < 1%) |
| Spatial requirements: |
approx. 75 m2 |
| Year of construction: |
2003 |
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Reciprocating screen and buffer tank of the Envopur® UFI 2.000 NA
Ultrafiltrationsmodule of the Envopur® UFI 2.000 NA
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