Profit from Zero Liquid Discharge - Industrial Green Chemistry · 2018-03-26 · P-ZLD (Profit from...
Transcript of Profit from Zero Liquid Discharge - Industrial Green Chemistry · 2018-03-26 · P-ZLD (Profit from...
Profit from Zero Liquid
Discharge
By – Dr. Sanjay Jain
“We cannot solve our problems with the same thinking we used when we created them”. Albert Einstein
“ The important thing is not to stop
questioning”
Case studies of P-ZLD
Sr.
No.
Chemical
Recovered
Industry
Segment
Platform Technology
used
Payback
1 Aluminium Chloride
Hexahydrate
Pharma Antisolvent Crystallization
Technology
10 months
2 Formaldehyde Pharma Novel Extraction
Technology
11 months
3 Formic Acid API Novel Extraction
Technology
9 months
4 Glycolic Acid API Novel Separation
Technology
11 months
5 Para-Toluene Sulfonic
Acid
Pharma Novel Reactive
Precipitation Technology
9 months
Case studies of P-ZLD
Sr.
No.
Chemical
Recovered
Industry
Segment
Platform Technology
used
Payback
1 Acetic Acid Textile Novel Extraction
Technology
8 months
2 Ammonium Sulfate Agro-chemicals Antisolvent Crystallization
Technology
12 months
3 Potassium
Carbonate
Agro-chemicals Antisolvent Crystallization
Technology
9 months
4 Potassium Chloride Dyes &
Pigments
Antisolvent Crystallization
Technology
8 months
5 Potassium Nitrate Agro-chemicals Antisolvent Crystallization
Technology
8 months
6 Sodium Sulfate Agro-chemicals Antisolvent Crystallization
Technology
10 months
Why P-ZLD?
• To add to the bottom line (payback <2 years)
• To add to the green credentials
• To give strategic / locational advantage
• To eliminate statutory hassles
• To free the land for productive uses
• Achieve balance between environment and economy
• Goodwill in the community
New Approach
P-ZLD (Profit from Zero Liquid Discharge)
Three step process
– Awareness – of loss of value
– Technology solutions (innovative application
of existing technologies)
– Execute on commercial scale
The Strategy
Step 1: Changed Thinking
Remember the crude oil problem – look at the value
and not the problem
Step 2: Innovative Technologies
New applications of existing technologies
Step 3: SMART implementation
Synergetic, Measurable, Attainable, Risk-free, Time-
bound
Think ISI
Step – 1: Identification • Call the chemical by its correct name and qualify thewaste stream by proper chemical composition
Step - 2 : Segregation• Segregate the streams at source. Equalization tank isthe biggest killer of value.
Step – 3 : Integration• Consider recovery and P-ZLD as integral part ofmanufacturing
Changed Thinking
Pose the right problem• COD / TDS = Cost• Glycerol, Na2SO4, K2CO3 etc. are values• 50,000 ppm TDS may be 5% Na2SO4• 80,000 ppm COD may be 6-10% solvents, intermediates orproducts
Awareness of money going down the drain
Industrial Waste water is a resource• Awaiting the right solution
Geist Research Private Ltd
Offers game changers in waste water
recycling by
WOOW Processes…
For Profitable, Industrial
Waste Water Recycling
WOOW Processes
WOOW – Crystallization– for recovery of solids
WOOW – Extraction– for recovery of liquids (mainly organics)
WOOW – Dewatering– for non evaporative concentration of dilute
streams
WOOW - Crystallization
Used for solids in waste waters
Recovery depends of achieving super saturation by:•Commonly used
- Temperature – very common
- Evaporation of water – common and expensive
WOOW Crystallization
• Intelligent use of common ion effect
• Change the system properties by
- pH
- polarity
- dielectric constant
WOOW - Extraction
Used to recover pure organics and other liquids fromwaste streams
Various Extraction technologies:
Normal Extraction• Cross current / counter current• Mass transfer based on activity coeffs
Reactive Extraction• Enhance the partition coefficient by reversible adductformation• Use the free energy of reaction in addition toconcentration potential
WOOW - Dewatering
For concentration of Dilute streams
Similar to Extraction
Extracts water from resource stream
The aqueous stream is saturated
• Further processing is cheaper
Solvents with UCST / LCST can• Separate water from resource stream
• Without evaporation of water or solvent
Challenges
Challenge – 1
• No mathematical models, no accurate simulators.
Available simulators can give wrong results. pH of the
system is an added factor
Challenge – 2
• No data / databases for multi component aqueous
systems.
Challenge – 3
• Designing a continuous system for efficiency
Geist’s Way
Our USP:• Our own customization lab, data generation set ups• Follow our own version of fast screening and bounding boxapproach• Our own design methods for dealing with multi-componentaqueous systems
Additionally:• Our own team for execution with single point responsibility• Take complete charge of your waste water problem• Comprehensive ecosystem of all water related issues
Some of the molecules recovered from resource
streams
Inorganic MoleculesAluminium Chloride Hexahydrate,
Ammonium Sulfate, Phosphoric
Acid, Potassium Carbonate,
Potassium Chloride, Potassium
Hydroxide, Potassium Nitrate,
Potassium Sulfate, Sodium
Bisulfite, Sodium Chloride, Sodium
Hydroxide, Sodium Metabisulfite,
Sodium Sulfate, Sodium Sulfite,
Sodium Thiosulfate, Sulfuric Acid,
Sodium Bromide, Sodium Silicate
Organic MoleculesAcetaldehyde, Acetic Acid,
Butraldehyde, Cellosolve,
Formaldehyde, Formic Acid,
Glycerol, Glycolic Acid, Glycols, N-
methyl Pyrrolidone,
Phenol/Phenolics,
Polyglycerol, Para Toluene Sulfonic
Acid, Sodium Formate, Dimethyl
Sulfoxide, Dimethyl Sulfide
CLIENTELE
Agro Chemicals
API & Intermediates
Dyes & Pigments
Specialty Chemicals
Petro chemicals
Other Chemical Process
Industries
Fine Chemicals
Inorganic Chemicals
To summarize
Balance:
• Between development and environment
• Does not mean compromise
• Means the ability to consider all aspects and creating
win – win situations
• Needs the left side of brain working in tandem with
right side
• Between engineer and artist
Thank You
The Journey of a Thousand Miles Starts with a Single Step