Wastewater Treatment for the Solar Industry

As in the semiconductor industry the production of solar cells employs dangerous and environmentally harmful substances, which require abatement according to legal provisions. The production of photovoltaic cells therefore is subject to strict requirements for treatment of wastewater.

Efficient Wastewater Solutions for the Photovoltaic Industry

The wastewater treatment in solar manufacturing sites is subject to strict regulations. Solutions need to be easy and cost-effective. The contaminated wastewaters (e.g. dissolved fluorides, small silicon oxide particles) should, under no circumstances, lower performance, endanger the health and safety of humans, or otherwise negatively affect the availability of production facilities.

The safety of the production line must be guaranteed at every step and in every operating situation. DAS solutions guarantee a smooth production process in modern factories of different sizes through a unique combination of waste gas and wastewater treatment for the solar industry.

DAS Original: The Pollution Abatement Facility

DAS offers a combined waste gas and waste water treatment solution to its customers in the solar industry – the Pollution Abatement Facility for Solar Fabs. As a specialist in point-of-use waste management technology DAS possesses not only extensive know-how in the treatment of loaded process emissions, but also in the complete treatment concept for waste gas and wastewater handling in the solar industry. We have the technological expertise to answer any of the photovoltaic industry’s questions regarding operational safety, system integration, monitoring and remote maintenance.

As a specialist in point-of-use waste management technology DAS possesses not only extensive know-how in the treatment of loaded process emissions, but also in the complete treatment concept for waste gas and wastewater handling in the solar industry. We have the technological expertise to answer any of the photovoltaic industry’s questions regarding operational safety, system integration, monitoring and remote maintenance.

When producing thin-layer solar cells diverse gases are employed. The efficient and compact DAS gas abatement technology combines burn/wet technologies in the smallest of spaces. In addition, the waste water from the production of silicon-based solar cells usually caustic potash solution with dissolved fluoride-ions as well as silicon-dioxide SiO2 in the form of small particles which can also be treated with DAS wastewater treatment systems.

Processes like precipitation, coagulation and neutralization treat the polluted process wastewater adequately. Solids are separated and disposed in respective waste sites. The remaining water can be directly discharged into the local sewage system without any further treatment. If desired DAS also delivers systems for production supply with softened as well as ultra pure water. Within these systems recycling processes are possible, which can cut considerably, operational costs. Ultimate reliability at the lowest operational cost is the strength of the waste management solution from Dresden. This is how DAS Environmental Expert GmbH helps the photovoltaics remain a “green” and environmentally friendly technology.

Your Benefits

  • Integrated abatement including wastewater
  • Safe, reliable, cost-efficient
  • Global installed base
  • Cost saving through water recycling
  • Removal of fine dust and aerosols
  • Scalable from Lab to Fab
  • Efficient Use of Chemicals due to Combined System Concept

Fields of Application

  • Wastewater Treatment after Waste Gas Treatment
  • DI-Water-Treatment
  • Treatment of washing and flush water