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1. Typical Performance Results
:
| Parameter |
Untreated |
Treated with
E.C. |
Treaded with
C.A.S. |
| Result |
Reduction |
Result |
Reduction |
Turbidity N.T.U.
S.S. PPM
C.O.D. PPM
B.O.D. PPM
D.O. PPM
|
30
320
368
250
Present
NI:L
|
1.7
20
60
25
NIL
2-4
|
95%
94%
84%
90%
100%
|
10
55
108
25
Present
0.5-2.0
|
66%
83%
71%
90%
-
-
|
Advantages Of Insitu Electrolytic
Sewage Water Treatment Plants To The Residential, Commercial Complexes &
Institutes
- Compact Plant With Small Foot
Print
- Noiseless Operation
- Chemical Free, Non Biological
- Low Skill Operation
- Less Moving Parts & Low
Maintenance
- Conserves Valuable Water Resource By
Recycling and Re-Use for Secondary Applications (Great Benefit In Water
Scarce Regions)
- Reduces Dependence On Central
Station For Water Supply
- Guarantees Availability Of
Water
- Treated Water Can Be Discharged
As It Is Disinfected
Drinking Water
Treatment
Comparison for Drinking Water
Treatment with Chemical Treatment
- Chemical Free
- No Addition of
Anions
- Does not Increase
Salinity
- No Increase in
Conductivity
- No Increase in
Acidity
- No Need for Alkaline
Supply
- Does not Increase
TDS
- Eliminates Hazardous
Elemental Chlorine
- Produces Low Disinfecting
By-Products
- Eliminates Procurement,
Storage and Dosing of Chemicals
- Eliminates Chemical
Transportation, Preparation and Dosing Equipments
- Less Moving Parts and Less
Maintenance
- Needs Low Skill for Operation
as the Process is Chemical Free
- Generates Low Volume of Sludge
with Better Dewatering
- Compact Plant with Small Foot
Print
|
- Chemicals Added
- Anions are Added
- Increases Salinity
- Increases
Conductivity
- Increases
Acidity
- Needs Alkaline
Supply
- Increases TDS
- Uses Hazardous Elemental
Chlorine
- Elemental Chlorine Produces
High Disinfecting By-Products
- Chemicals are to be
Procured, Stored, Prepared and Dosed
- Needs Chemical Transportation,
Preparation and Dosing Equipments
- More Moving Parts and More
Maintenance
- Needs High Skill for Operation
to assess Chemical Requirement, Preparation and Dosing
- Generates High Volume of Poor
Dewatering Sludge and Disposal Problems
- Large Plant with Big Foot
Print
|
|
Conventional Chemical
Process
|
- Modular in Construction
Easily Expandable
- Ease of Control, Operation and
Maintenance
- Shock Dose is Easily
Tackled
- Consistency in Performance is
achievable with Chemical Free Process
- High Plant Availability with
Less Moving Parts and Maintenance
|
- Fixed Construction, Difficult to Expand
- Difficult to Control, Operate
and Maintain
- Shock Dose is Difficult to
Tackle
- Consistency in Performance is
Difficult to achieve with Chemical Usage
- Low Plant Availability with
More Moving Parts and Maintenance
|
Disadvantages Of Chemicals -
I
Alum {Al2(SO4)3.18H2O} :
Has only 5% Active Coagulant. Rest
contributes to increase in Salinity, Conductivity, Acidity and TDS. 10 ppm of
Alum when added to Zero Alkalinity water at pH 7 reduces its pH to 3.2, making
it acidic. It adds Sulphate Anions in water increasing Sulphidity and TDS.
PAC {Al2(OH)5Cl} :
Has only 5% Active Coagulant. Rest
contributes to increase in Salinity, Conductivity, Acidity and TDS. 10 ppm of
PAC when added to Zero Alkalinity water at pH 7 reduces its pH to 4, making it
acidic. It adds chloride anions in water increasing its TDS
Chemical Treatment removes one type of
Contaminant and introduces another. Alum and PAC increases acidity and Total
Dissolved Solids. To increase the Efficiency of Coagulation and to Neutralize
the increase in Acidity, Alkaline Chemicals are needed, which again contributes
to increase in Total Dissolved Solids and thus increases Chemical Constituents
in water that we drink. These Chemicals have only 5% of Active Coagulants in
them, rest contributes to increase in Acidity and Total Dissolved
Solids.
Elemental chlorine is hazardous not only
in transportation, storage and handling, but in its elemental form
generates disinfecting by products which are generally known as DBPs.
Chemical requirement assessment needs
skill manpower and analytical laboratory. In addition these chemicals have to be
procured, multi transported and stored in large quantities. Chemical handling,
preparation equipments and Dosers are needed till it reaches its destination.
Cost Break-Up for Treating 1,000
Ltrs. Of Drinking Water with Electrolysis
| Parameter |
Total Unit x Rate
/ Unit (Rs.) |
Total
Cost |
Total
Energy
Electrode Cost
Salt |
65WH x 4 /
KWH
20gm x 1 /
Kg
|
Rs. 0.26
Rs. 0.40
Rs. 0.02 |
| Total
Cost to Treat 1,000 Ltrs. Of Drinking Water |
Rs.
0.68 |
Comparison Of Drinking Water
Treatment Between Electrolytic and Conventional Chemical
Treatment
1. Physical Size of the Plant to
Treat 1000,000 Ltrs. / Day :
| Process |
L x W x H (in
mm) |
Total Area
Required |
Electrolysis
Chemical
Process
|
3,000 x 3,000 x
3,000
5,000 x 5,000 x
3,000
|
9 Sq. Mtrs.
25 Sq.
Mtrs.
|
Advantages Of Insitu Electrolytic
Drinking Water Treatment Plants To Residential, Commercial Complexes and
Institutes
- Compact Plant With Small Foot
Print
- Noiseless Operation
- Chemical Free, Non Biological
- Eliminates Procurement,
Transportation, Storage, Preparation And Use Of Hazardous And
Expensive Chemicals
- Low Skill Operation
- Less Moving Parts & Low
Maintenance
- Conserves Valuable Water Resource By
Recycling and Re-Use for Secondary Applications (Great Benefit In Water
Scarcity Regions)
- Reduces Dependence On Central
Station For Water Supply
- Guarantees Availability Of
Water
- Treated Water Can Be Discharged
As It Is Disinfected
- Eliminates Purchasing Expensive Tanker
Water
Some
Installations
- Century Enka Limited, Bhosari,
Pune.
To Treat
1,000,000 Litres Per Day Of Secondary Effluent To Control Algae, Biofilm
Formation And To Disinfect It.
- Chitale Dairy, Bhilawadi,
Sangli.
To Treat
1,500,000 Litres Per Day Of Raw Water To Control Algae, Biofilm Formation
And To Disinfect It.
- Yashwant Sahakari Sakhar Karkhana
Limited, Theur.
To Treat Cooling
Tower Water With A Recirculation Rate Of 125,000 Litres Per
Hour.
- Ajinkyatara Sahakari Sakhar
Karkhana Limited, Satara.
To Treat Cooling
Tower Water With A Recirculation Rate Of 125,000 Litres Per
Hour.
- Vascon, Marygold Complex,
Kalyaninagar, Pune.
To Treat 50,000
Litres Per Day Sewage Water To Recycle For Gardening And
Flushing.
- Vascon, Eves Garden, Baner Road,
Pune.
To Treat 43,000
Litres Per Day Of Grey Water To Recycle For Gardening And
Flushing.
- Omega Residency, Balewadi,
Pune.
To Treat 50,000 Litres Per Day Sewage
Water To Recycle For Gardening.
- Magarpatta City Development,
Pune
Tp Treat 250,000 litres per day of
Sewage Water and to recycle for Gardening.
- Marygold Commercial Complex,
Kalyaninagar, Pune.
To
Treat 100,000 Litres Per Day Sewage Water To Recycle For Gardening And
Flushing.
- Vascon, Wiekfield, Nagar Road,
Pune.
To Treat 50,000
Litres Per Day Sewage Water To Recycle For Gardening And
Flushing.
- Deccan Gymkhana, Deccan, Pune.
To Treat
3,000,000 Litres Of Swimming Pool Water To Control Algae And To Disinfect
It.
Reclaimed Water Reuse:-
 In the planning and implementation of water reclamation and reuse, the reclaimed water application will usually govern the wastewater treatment needed to protect public health and the environment, and the degree of reliability......
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