PHOTOVOLTAIC · MOESER BAER

MODERN WASTE WATER TREATMENT TECHNOLOGY FOR THE PRODUCTION OF STORAGE MEDIA AND SOLAR CELLS.

The company Moser Baer Photo Voltaic Ltd. recently built a new factory in New Delhi for the manufacture of silicon crystal wafers which reaches a nominal capacity of 80 MWp (megawatt peak) per year.  

The production of solar cells as well as the air scrubbers results in waste water which is continually treated with Envochem® COL 10.000 chemical physico process. The necessary chemicals to fix the pH are fully automatically dosed.
The waste water is neutralized and the contaminants are flocculated and separated from the water with a special dosifier. A press dewaters the resulting sludge.

The Envochem® COL plant from EnviroChemie fullfills the strict waste water thresholds as provided in the contract.  

The plant was pre-built by EnviroChemie in Germany according high quality standards.  This reduced the time for the assembly and start of operations in India. The plant was then completed by EnviroChemie specialists on location. EnviroChemie supports plant operations via Modem with a monitoring system from EnviroChemie Germany.

APPLIED MATERIALS · VACUUM COATING

PROCESS WATER AND WASTE TREATMENT FOR THE SOLAR BRANCH, VACUUM COATING, THIN-FILM CELLS

One of the leading manufacturing enterprises of special equipment and manufacturing processes for semi-conductors, electro-techniques and solar energy engineering, is currently operating a technological centre in Lower Franconia, German for solar technology vacuum processes. Highly modern production equipment for thin-film coatings is being installed. The process requires highly purified water for the washing and cleaning procedures. During various of the processing stages, waste water is accumulated from the wet etch processes and the buner scrubbers. The EnviroChemie Group supplies the entire plant for the process water and for the waste water treatment.

EnviroFALK Process water

The demineralised water is gained from the public mains water by means of FALK equipment, which consists of water softening plant, reversal osmosis equipment and a polisher in two circulatory systems. The plant is supplied already erected on racks and has a capacity for the production of 2 x 1000 l/h of highly purified water.

Technical Data

EnviroChemie waste water

The waste water is primarily contaminated with HF and HCl. The Envochem® Plant treats waste water chemico physically and dehydrates the impinging sludge. The treated waste water complies with the requirements of the local waste water regulations. The basic characteristic of the process is the double-walled construction of the waste water piping and tanks, which offer a high measure of safety. EnviroChemie supplies the entire piping from the impingement of waste water right through to the treatment plant.

The EnviroFALK Plant as well as the Envochem® plant is prefabricated and ready to be connected up on site.

Technical Data

SCHOTT AG · MAINZ

COMPETENT WATER MANAGEMENT IN WASTEWATER AND RECYCLING WATER TECHNOLOGY

Nine EnviroChemie water experts are entrusted with the water management project with Schott AG in Mainz and are available 24/7. The team consists of engineers, technicians, laboratory technicians, chemical engineers, supply and disposal contractors.

Benefits for the customer

• competent, holistic solution from a single source
• maximum availability
• economic advantages compared with self-management
• guaranteed water and wastewater quality

The company premises cover approx. 300,000 m² with five different manufacturing areas, each having different requirements concerning the water supply and disposal systems.

• Ceran®
• Robax®
• Optical glass
• Hollow glass production
• Fibre optics

The EnviroChemie team guarantees for smooth operation

with well water: 7 plants with a capacity of 4,500 m³/d
Technical management of the well water regeneration process as well as chemical, physical and microbial monitoring of well water

Dealkalisation: one plant with a capacity of 2,800 m³/d
Operation of a fast dealkalisation plant, maintenance, servicing, process servicing, analytics

DI water: 6 plants with a capacity of 360 m³/d
Centralised and decentralised DI water supply by means of reverse osmosis and ion exchange

Recycling water: 2 plants with a capacity of 5,000 m³/d
Chemico-physical treatment, removal of water compounds such as heavy metals, sludge cycle

Cooling lubricant: 5 plants, 850 m³/d
Cooling lubricant treatment with chemico-physical treatment plant and filtration plant, monitoring of concentration, corrosion and microbiological contamination, legally prescribed documentation TRGS 611 (TRGS = Technical Rules for Hazardous Substances)

Cooling water: 19 plants, 25 MW
Feeding and monitoring of open and closed cooling circuits, analysis of corrosion, concentration and sewers introduction parameters

Wastewater: 4 plants with a capacity of 150 m³/d
Chemico-physical treatment of wastewater from glass fibre production, chemico-physical treatment of wastewater from glass surface treatment with high cooling lubricant contamination, neutralisation of wastewater from laboratories

RECYCLING OF GLAZES · VILLEROY & BOCH

RECYCLING OF GLAZES VILLEROY & BOCH, METTLACH

Villeroy & Boch, the world famous producer of ceramic and lifestyle products in Mettlach, Germany, has been looking for an innovative technology to regenerate rinsing concentrates resulting from glaze processing. An optimal process to recycle glazes was developed within the framework of a joint research project with EnviroChemie. Extensive examinations in a test laboratory and a pilot installation supplied the necessary technical data for the design of the Envopur® microfiltration plant.  
 
The new Envopur® microfiltration plant conserves valuable resources by filtering the process water in such a manner that it no longer has to be treated as waste water.

Water type: Rinsing concentrate from glaze processing

Process: Envopur® microfiltration

Plant capacity: 20 m³/d

GLASS TREATMENT · ZEISS

NOT ONLY CLEAN OPTICAL GLASS

Capacity: approx. 8 - 10 m³/h

Process: Lugan® 20.000 integrated flocculation with dissolved air flotation