Zero Liquid Discharge Systems
How Zero Liquid Discharge Systems Works?
Zero liquid discharge is a water treatment where all
water is recovered and contaminants are reduced to solid waste. Water treatment
processes effort to maximize improvement of freshwater and reduce waste, ZLD is the most demanding goal since
the cost and challenges of recovery increase as the wastewater gets more
concentrated. It includes reverse
osmosis, ultra filtration, evaporation and various other membrane
technologies.
Benefits to targeting zero liquid discharge for an industrial process or facility:
- Lowered waste volumes reduce the cost associated with waste management.
- Reprocess water on site, lowering water gaining costs and risk.
- Reduce trucks associated with off-site waste water disposal, and their associated greenhouse gas impact.
- Superior environmental performance and regulatory risk profile for future permitting.
Technoforce Pvt. Ltd. offers Zero Liquid Discharge System which is highly cost-cutting,
environment friendly in nature. It is a system consisting of a stripper column
for removal of organic volatiles from the feed stream. It does so because consequently
when the water gets evaporated; it should have less organics left as residue.
ZLD System also consist Multiple Effect Evaporator with a
thermo-compressor for achieving energy economy, and a downstream Sludge Dryer for eliminating the
balance water, converting the solids into a dry powder which is cheaper and
easier to order. The well-designed system saves operating and disposal costs
and minimizes scaling in the evaporators.
How does a ZLD treatment system work?
Specific
treatment processes vary, but a typical Zero Liquid Discharge treatment facility process will
usually include the following steps:
Pretreatment
and conditioning
Pretreatment
is used to remove simple things from the wastewater stream that can be filtered
or precipitated out, conditioning the water and reducing the suspended solids
and materials that would otherwise scale and/or foul following treatment steps.
Phase-one
concentration
Concentrating
in the earlier stages of ZLD is usually done with membranes like reverse
osmosis (RO), brine concentrators, or electrodialysis.
Evaporation/crystallization
After the
concentration step is complete, the next step is generating a solid, which is
done through thermal processes or evaporation, where you evaporate all the
water off, collect it, and reuse it. Adding acid at this point will help to
neutralize the solution so, when heating it, you can avoid scaling and harming the
heat exchangers.
Recycled
water distribution/solid waste treatment
If
the treated water is being reused in an industrial process, it’s
typically pumped into a holding tank where it can be used based on the demands
of the facility. The ZLD treatment system should have purified the water to be
reused safely in your process.
Technoforce Pvt. Ltd.
Has experience in custom-designing and manufacturing wastewater treatment systems, so please
feel free to reach out to us with your questions. For more information or to
get in touch, contact us here. You can also visit our website or request a quote.
We can walk you through the steps for developing the proper solution and
realistic cost for your ZLD wastewater
treatment system needs.
Phone No: (+91)0253 238 3668,(+91)022 25550116,
Visit our site at: www.technoforce.net/zero-liquid-discharge-systems/
Comments
Post a Comment