phytorid presentation by a3 s enviro
TRANSCRIPT
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PHYTORID based sewage treatment systemPresented by
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Sources• Municipal/domestic waste water• Strom water discharges•Hotel and Offices• Agricultural runoff• Landfill leachates• Industrial wastewater
Environmental and Health Impact• Ground water pollution• Eutrophication of lakes and other water bodies• Degradation of river water quality• Impact on public health
Treatment• Reuse/recycle• Avoiding contaminations in water bodies• Decentralized approach for reducing pressure on civic bodies
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Ground water pollutionEutrophication in lakes and other water bodies
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Odor problems Mosquito nuisance and breeding of insectsE-coli and other pathogenic micro-organisms can contaminate drinking water sourcesSpreading of communicable diseases like cholera, dengue, malaria, etcImpact on bathing quality of rivers, beaches etc.
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ProcessesSedimentation Bacterial action Filtration Adsorption Precipitation Decomposition Nutrient uptake Vegetation system
Phytorid bed
Treated water storage
Sewage collection tank
Settler/screen
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Subsurface Flow System Reduced odour – no
wastewater at surfacePropagation of insects is
also controlled Microbes that treat the
wastewater live on the gravel, soil and plant surfaces
plants provide oxygen and food for the microbes
8
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10
Sr. Items Conventional activated
sludge
UASB Extended Aeration
Facultative Aerated Lagoons
PhytoRid Technology
1 Performance BOD Removal %
85-92 75-78 95-98 75-85 80-95
2. Sludge First digest then dry on beds or use
mech devices
Directly dry on beds or use
mech devices
No digestion dry on sand beds or use
mech devices
Mech. Desludging once in 5-10 years
Negligible
3. Equipment Requirement (excluding screening and grit removal common to all processes)
Aerators, recycle pumps,
scrappers, thickeners, digesters, dryers gas equipment
Nil except gas collection and
flaring gas conversion to
elect is optional
Aerations, recycle pumps sludge,
scrappers for large settlers
Aerators only
Water pump(no pump is required if
flow by gravity).
4. Operational Characteristics
Skilled operation
reqd.
Simpler than ASP Simpler than ASP
Simple Unskilled operator
5. Special features Considerable equipment and
skilled operation reqd specially when gas collection
and usage considered
Minimal to negligible power reqd. makes it economical at
even if gas revenue is neglected
BOD removal highest effluent
nitrified high power reqd. Favoured for
small and medium plants
Power reqd. similar to
ASP operation simpler
Plant species and odour
less operations
Typical Performance Characteristics for Various Treatment MethodsTypical Performance Characteristics for Various Treatment Methods
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Various Plant TypesWater Hyacinths Eichhornia crassipes
Forage Kochia Kochia sppPoplar Trees Populus sppWillow Trees Salix spp
Alfalfa Medicago sativaCattail Typha latifolia
Coontail Ceratophyllum demersvm LBullrush Scirpus spp
Reed Phragmites spp. American pondweed Potamogeton nodosusCommon Arrowhead Sagittaria latifolia
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Cost of Operating PhytoridCapacity[ Liters /
day ]
Capital Cost
Rs ( in lakhs)
Cost of construction Rs ( in lakhs)
Running Cost
[ Rs / 1000 liters]
Time to Commissio
ning
Land requirement with clarifier
Land requirement
sWithout clarifier
Annual O&M Cost
[ % of Capital Cost ]
10,000 2.3 1.5 Rs 0.8- 1.00 3 months 250 sq ft 350 sq ft <3-5%
30,000 3.6 2.8 Rs 0.8-1.00 3 months 500 sq ft 750 Sq ft <3-5%
100,000 8.5 10.5 Rs 0.8-1.00 3 months 1300 sq ft 1800 Sq ft <3-5%
1000,000 55 65 Rs 0.8-1.00 4 months 13000 sq ft
18,000 sq ft <3-5%
•Conventional & Mechanized technologies like ASB, UASB, SBR, MBBR are too expensive and require 30% of the capital cost as annual O&M costs. At an average these processes pose water treatment costs of Rs 6-8/ 1000 Liters.
•In case where gravity may not work single pump shall be required for maintaining water flow.
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ADVANTAGESCost-effectiveOperation and maintenance expenses are negligible.Minimum electricity requirementSmaller footprint (Retention time: Typically less than 24 hrs.)Facilitates recycle and reuse of waterNo foul odor and No Mosquito Nuisance.Tolerates fluctuations in operating conditions such as flow,
temperature and pH
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PHYTORID system is useful for treatment of waste water in following applications
Domestic wastewater (including decentralized Municipal waste water treatment) Colonies, Airports, Commercial complexes, Hotels Open drainage Cleaning of nallah water
Agricultural wastewater Dairy waste Slaughter House Waste Fish pond discharges Pre treated industrial wastewater (PHYTORID can be polishing) Municipal Landfill leachates Several other applications
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Product Water quality
Treated water complies to the regulations laid down by CPCB to reuse the water for the purpose of discharge, gardening agriculture etc. For flushing and cooling tower uses, tertiary treatment will be required.
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Green pointsBest Adoptable technology for treatment and reuse of
waste waterPhytorid Technology carryout on-site treatment and reuse
of grey water up to 95%, which would attract total of 5 credits on Indian Green Building Certification (IGBC).
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Aesthetics
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Pollutant Performance
(% removal)
Total suspended solids 75 – 95
Biochemical oxygen demand
70 – 80
Chemical oxygen demand 60 – 75
Total nitrogen 60 – 70
Phosphate 50 – 60
Fecal coliform 85 – 95
Treated water quality will meet the specified norms of CPCB/MPCB for water reuse
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•Works on gravity•No electric power requirement•Scalable technology•Easy to maintain•Adds to aesthetics •Cost effective
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CONTACT USAmit KaushikA3S Enviro & Consultants 202, 2nd floor , Kaushalya Tower, Vanasthali Marg , Jaipur ,
Rajasthan Email: [email protected] URL: www.a3senviro.com Mob: 9785120189, 9560419735