Overview
Industries have an ethical and moral obligation to reduce, recover, and recycle water to achieve 'Ze?ro Liquid Discharge,' which means that all water consumed is returned into the system. With the use of cutting-edge technology and ongoing innovation, zero liquid discharge is not only conceivable but also affordable.
What is ZLD or Zero Liquid Discharge?
Zero Liquid Discharge (ZLD) is a cutting-edge wastewater treatment technology that aims to eliminate all liquid discharge from a system altogether. The purpose of a zero liquid discharge system is to decrease the amount of wastewater that has to be treated, process wastewater efficiently, and provide a clean stream that can be reused.
The ZLD System removes dissolved particles (mostly salt) from wastewater and replaces it with clean water. Reverse osmosis (membrane filtration) is used to concentrate the pre-treated waste stream and return the clean permeate to the process. The reject is funneled to an evaporator, and the evaporator concentrate is sent to a crystallizer or spray drier.
The following elements make up a systematic ZLD:
• Pre-treatment (physicochemical and Biological)
• Reverse Osmosis (membrane processes)
• Crystallizer and evaporator (thermal processes)
Methods adopted to achieve ZLD
To achieve ZLD, a variety of strategies can be used:
1. The thermal procedure (evaporation)
2. RO stands for reverse osmosis (membrane technology)
3. Electrodialysis
4. Forward osmosis
5. Membrane distillation
Benefits of ZLD
ZL?D has certain advantages:
1. Recycling prevents wastewater discharge.
2. Water and salt recovery help to keep ZLD's operating costs down.
3. It enhances the industry's and the environment's long-term viability.
4. Because the textile sector uses less water, more water is available for other uses, such as irrigation (agricultural) and home utilities.
5. ZLD contributes to environmental recovery.
6. The cement industry can make good use of the sludge.
Why Need of ZLD in Textile industry?
Textile industry is one of the oldest and most important businesses in Indian economy. It accounts for around 2% of GDP, 8% of tax collections, 14% of industrial production, and 12% of overall manufacturing export profits.
In the textile sector, diminishing ground water tables owing to overexploitation and the Central Pollution Control Board's (CPCB) Zero Liquid Dischar?ge (ZLD) regulation have prompted textile processing plants to adopt effective water usage and management.
For some of its water-intensive operations, India's textile sector consumes 1,608 MLD each day. If the waste-water from these companies is not purified and released or repurposed, it pollutes the surrounding water, adding to the country's water problems.
Conclusion
To prevent pollution of surface and groundwater, the CPCB developed the ZLD system, which is required for all extremely polluting industries such as textile coloring and bleaching, tanneries, and other industries that use a significant amount of salt and consume a large amount of water. The ZLD method guarantees that water and salt are recovered from trash, reducing polluting of rivers and groundwater.Many textile firms have begun to adopt worldwide best practices for water reuse, such as Zero Liquid Discharge (ZLD). This technique guarantees that all water used in textile manufacturing is collected and reused to the maximum extent possible, allowing these businesses to decrease their water footprint.
What can we offer?
Netsol Water is one of the leading water and wastewater treatment company in India offering projects and services in the field of water and wastewater treatment plant manufacturing and supplying machines which not only turns your wastewater into usable water but also acts as a savior of Mother earth and its precious resource “water”.
Netsol Water is Greater Noida-based leading water & wastewater treatment plant manufacturer. We are industry's most demanding company based on client review and work quality. We are known as best commercial RO plant manufacturers, industrial RO plant manufacturer, sewage treatment plant manufacturer, Water Softener Plant Manufacturers and effluent treatment plant manufacturers. Apart from this 24x7 customer support is our USP. Call on +91-9650608473, or write us at enquiry@netsolwater.com for any support, inquiry or product-purchase related query.