Today, freshwater scarcity is one of the most critical global challenges, possessing a major threat to economic growth, water security, and ecosystem health. Climate change and the pressures of economic development and industrialization further challenges to providing adequate and safe drinking water. The public and industrial sectors consume substantial amounts of fresh-water while producing vast quantities of wastewater. The wastewater discharged into the aquatic environment causes severe pollution that adversely impacts aquatic ecosystems and public health.
Causes and effects
Industries like textile, chemical, tanneries, power, oil & gas, and pharmaceutical generate a large volume of wastewater. The effluent generated from these industries hasa higher amount of toxic chemicals solid waste, and organic waste that affects the environment severely. Ganga, one of the biggest rivers in India, is highly polluted because numerous industries are situated on its banks. The wastewater generated from these industries is directly released into the mainstream of the river and its tributaries. For the villages on its banks, which had not got a potable water supply connection at their home, Ganga is the only source for drinking water. People living in such villages are forced to drink the water that has toxic chemicals and compounds.
Zero liquid discharge (ZLD) – The need of the hour
Recovery and recycling of wastewater has become a growing trend in the past decade due to rising water demand. Government has come up with different initiatives to reduce the water waste by promoting to install a ZLD plant for its industry. The key driver for zero liquid discharge is a growing concern about the impact of such wastewater discharge on the environment. Such concern is resulting in increased regulation and limitation of wastewater discharges. Some organizations are also targeting ZLD for their waste because they can sell the solids that are produced or reuse them as a part of their industrial process. For example, salt is the by-product we get at the last stage of ZLD. This salt can be used in the textile process.
Zero liquid discharge (ZLD) is an aspiring wastewater technology used to reclaim the freshwater from the effluent. ZLD forestalls the risk of pollution associated with wastewater discharge and maximizes water usage efficiency, thereby striking a balance between exploitation of freshwater resources and preservation of aquatic environments. Achieving ZLD, however, is generally characterized by intensive use of energy and high cost. Therefore, ZLD has been considered where the effluent cannot be released into the environment.
We at Arvind Envisol break the barriers of operating ZLD at high energy and cost. Arvind Envisol’s “Patented Polymeric Film Evaporation Technology” is the most energy-efficient ZLD technology in the industry.
Polymeric film evaporation technology (PFET)
PFET is an energy recovery evaporator which compresses a low-pressure vapor and produces a low volume of vapor with high pressure and temperature. In PFET, influent is heated with steam which in turn produces a compressed vapor and it is sent back to a heat exchanger. In the heat exchanger, it gets condensed and we get pure water at its outlet. PFET has numerous advantages over conventional MVR. Below infographic shows how it is better.
Using PFET in your plant
Generally, Zero liquid discharge is attained by feeding the higher TDS effluent to Multi-effect evaporator (MEE). However, in case of higher capacities using MEE directly after RO will impose a higher capital investment and operating cost as well. MEE requires a higher amount of steam. In such cases, incorporating PFET between RO and MEE will reduce the operating cost of the plant drastically. After RO effluent is fed into MVRE to remove high volatile compounds which were not removed in the previous process. In this process water recovered is approximately 80%.
Features of PFET
- Saves up to 80% energy compared to other ZLD technologies.
- Approximate 95% of liquid can be recovered out of the liquid waste fed to the system for treatment.
- Treat and retrieve valuable by-products from your waste (i.e. salts and brines)
- Produce a dry, solid cake for disposal
One of our guests lately recommended the following website. Elfrida Turner Sidonius
Just textiles Ltd , Plot No K-5, MIDC , Ambarnath ,Dist thane Maharashtra . Is a Process House having Bleaching section, Printing section, Jiggers , Jets & Soft flows for Dyeing , Stenters & Sanforizer for Finishing …
We have a ZLD plant consisting of Primary & secondary Classifiers , Aeration Tanks , Tertiary Treatment plant. UF/ RO plant , MEE and ATFD..Installed . ETP Capacity 600 m3/day
We are interested in PFET before ATFD to skip the other process … Please depute your representative to understand our requirement
We are will promptly and successfully generate a guarantee Premium improvement manhattan. Malissia Sherman Nigel
Sony really outdid themselves. Horror games? Resident Evil. Inga Krishna Rudelson
It as going to be end of mine day, except before end I am reading this great post to improve my experience. Allis Antoine Mosa
The mostOne of the mostEssentially the mostProbably the most popular scale of cars is 1:32. Zoe Bronny Beverley
Excellent, what a website it is! This weblog provides helpful information to us, keep it up. Dix Horten Laden
I like to hike in the spring when the snow from the mountains is melting and feeding the rivers and waterfalls. Claudetta Turner Haldas
I was wondering if you ever thought of changing the page layout of your blog? Its very well written; I love what youve got to say. But maybe you could a little more in the way of content so people could connect with it better. Youve got an awful lot of text for only having 1 or 2 pictures. Maybe you could space it out better? Afton Thadeus Edy
Hi there. I discovered your blog via Google whilst searching for a comparable subject, your site got here up. It seems great. I have bookmarked it in my google bookmarks to visit then. Leela Nickola Kloman
I enjoy reading through a post that will make men and women think. Also, many thanks for allowing for me to comment. Portia Menard Plato
Hey very nice blog!! Man .. Excellent .. Wonderful .. I will bookmark your site and take the feeds also? Glory Erhard Mason
Excellent article. I am dealing with some of these issues as well.. Ardeen Herman Ertha
I am usually to blogging and i really admire your content. The article has really peaks my interest. I am going to bookmark your website and keep checking for brand spanking new information. Shayne Cornell Maude
I was really happy to discover this web-site. I wanted to many thanks for your time for this terrific read!! I most definitely delighting in every bit of it as well as I have you bookmarked to have a look at new stuff you blog post. Genevra Jermain Blatt
Web pa?e titles describ? ?our p?ge and ??? the 1?t l?ne of ?our search outcomes
entry.
?? website select marketing escort
Web pa?e titles describ? ?our p?ge and ??? the 1?t l?ne of ?our search outcomes
entry.
?? website select marketing escort
Web pa?e titles describ? ?our p?ge and ??? the 1?t l?ne of ?our search outcomes
entry.
?? website select marketing escort
Web pa?e titles describ? ?our p?ge and ??? the 1?t l?ne of ?our search outcomes
entry.
?? website select marketing escort
Hesitates to kiss at initial but quite nice after she has relaxed a
bit.
Take a look at my homepage … escort girl brussels latin
Thankfulness to my father who stated to me concerning this weblog https://bengals.company.com/
I don’t even know how I ended up here, but I
thought this post was good. I don’t know who you are but certainly you’re going to a famous blogger if you aren’t already 😉 Cheers!
373351 635086Just wanna remark which you have a extremely nice internet site , I like the layout it in fact stands out. 981477
Hello there, just became aware of your blog through Google, and found that it’s truly informative. I’m going to watch out for brussels. I will be grateful if you continue this in future. Numerous people will be benefited from your writing. Cheers!
This video is presenting does vital flow work but also try to cover the following subject:https://www.facebook.com/pages/category/Health—Wellness-Website/Vital-flow-reviews-102135748499657/
-vital flow for prostate
-vitalflow prostate really works
-vitalflow prostate support reviews
One thing I noticed when I was researching info on does vital flow work was the absence of appropriate details.
Does vital flow work nevertheless is an subject that I know something about.
This video therefore should be relevant and of interest to you.
~~~~~~~~~~~~~~~~~~~~~
Follow our video clips about does vital flow work as well as other comparable topics on
I all the time emailed this blog post page to all my contacts,
since if like to read it afterward my contacts will
too.
Spot on with this write-up, I actually believe this website needs a great deal more attention. I’ll probably be returning to read through more, thanks for the information!
Check out my blog :: best CBD oil for dogs
I’d like to thank you for the efforts you’ve
put in penning this website. I really hope to check out the same high-grade content by you in the future as well.
In truth, your creative writing abilities has inspired me to get
my own blog now 😉
My webpage – cbd oil for sleep
It is appropriate time to make a few plans for the long run and it’s time to be happy.
I have learn this submit and if I could I desire to recommend you few fascinating issues or
advice. Maybe you could write next articles relating to this
article. I wish to learn more issues approximately it!
Here is my web site :: best CBD oil for dogs
I am regular visitor, how are you everybody?
This post posted at this web page is truly nice.
my web-site; CBD for sale
Magnificent goods from you, man. I’ve be mindful your stuff previous to and you are just too great.
I actually like what you have got right here, certainly like what you’re stating and the way
wherein you say it. You’re making it enjoyable and you
continue to care for to stay it sensible. I cant wait to learn far more from you.
This is really a tremendous site.
I really love your site.. Pleasant colors & theme.
Did you create this website yourself? Please reply back as I’m planning to create my very own blog and would love to learn where you got this from or
what the theme is called. Appreciate it!
For hottest information you have to visit internet and on internet I
found this site as a most excellent web page for newest updates.
my web site; best CBD gummies
It’s truly a great and useful piece of information. I’m
happy that you shared this helpful info with us.
Please stay us up to date like this. Thank you for sharing.
Excellent post. I used to be checking continuously this weblog and I am impressed! Very helpful info specifically the closing section
I’m not sure where you are getting your info,but good topic. I needs to spend some time learning much more or understanding more. Thanks for excellent info I was looking for this information for my mission.
Hi to every one, it’s genuinely a good for me to pay a quick visit this
site, it includes useful Information.
In fact no matter if someone doesn’t be aware of afterward its up to other people that they will assist, so here it takes place.
Hi friends, its great article on the topic of cultureand entirely explained, keep it
up all the time.
Howdy would you mind stating which blog platform you’re working with?
I’m looking to start my own blog in the near future but I’m
having a difficult time deciding between BlogEngine/Wordpress/B2evolution and Drupal.
The reason I ask is because your layout seems different then most blogs and I’m looking for something unique.
P.S My apologies for getting off-topic but I had to
ask!