Dyeing and finishing activities are energy-intensive and these depend on imported fossil fuels. By turning to heat recovery, significant cost savings can be achieved improving profitability and competitiveness.
This review analyses the techniques and technologies of heat recovery from waste water and exhaust air. Heat recovery from water includes techniques and processes such as cooling water recovery, centralized wastewater heat recovery, condensate recovery, and wastewater heat exchangers. Characteristic and capital required for heat recovery from the air are mentioned in the review.
Alternative developments in heat recovery are often associated with the use of Information Technology, to minimize not just steam consumption but also that of water and chemicals, to reduce process time, and to enhance quality.
The review concludes by justifying the introduction of new institutional, regulatory, and financial measures to define and implement mechanisms that facilitate the selective and timely introduction of Energy Management techniques and technology in the textile industry.
Read More: Heat recovery in the textile dyeing and finishing industry: lessons from developing economies
