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Bio toilets-ppt

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360 Degree Waste And Disaster Management Private Limited 58 A/1, FF, Kalu Sarai, (Near Hauz Khas Bus Terminal) New Delhi - 110016 Tel : 011 - 26864881,26965712
Transcript

360 Degree Waste And Disaster Management

Private Limited

58 A/1, FF, Kalu Sarai,

(Near Hauz Khas Bus Terminal)

New Delhi-110016

Tel : 011-26864881,26965712

Green Mandate @ 360Degree

1. Bringing bio-engineering to masses

2. Making open defecation a history

3. Clean, healthy and respectful India

4. Green India- respect environment

5. Conserve nature

2

3

Inauguration of First Bio STP Anusandhan Vihar-DRDO,Delhi

The 5.4 acres eco-friendly complex consists of 56 Four bed room flats & 56 three bed

room flats in a G+7 configuration along with complete sports and children park facilities.

The highlight of the complex is that, it is first ever residential complex based on DRDO

developed Bio-digester technology for sewage treatment of capacity 1.2 KL.

The potable water supply is based on Multi Utility water treatment plant. The entire

water is recycled for various purposes namely treated flush water for arboriculture, soft

water for bathing and washing purposes each of 2 lakh ltr capacity and treated water of

80000 ltr per day capacity for drinking and cooking purposes.

4

ANUSANDHAN VIHAR( First Hosuing Complex)

DRDO’S New Eco friendly Residential Complex in Timarpur, Delhi

5

Bio-Digester- Working Principle

DRDE DEVELOPED BIODIGESTER / BIO TANKS

TECHNOLOGY

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The treatment process in septic tanks attached to toilets does not

break down the waste completely.

Defense Research & Development Establishment (DRDE), Gwalior – an

R&D organization of DRDO, has developed a technology of bacterial

inoculums for sewage treatment under diverse geo-climatic conditions.

Recently developed technology named as 'BioTank' is the excellent low

cost alternative of the conventional septic tanks . The zero-waste bio-

digester technology breaks down human excreta completely into usable

water and gas through anaerobic process.

7

Human Waste

Anaerobic bacteria

(in liquid form)CO2 + Methane gases

Released to atmosphere

Liquid waste /

Effluent

Discharged directly

to drain/reed bed

(Can be used for

watering plants)

Can be used as Bio gas

for street lighting etc. for

community

WORKING PRINCIPLE OF BIODIGESTER / BIO TANK

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Aerobic biodegradation Anaerobic biodegradation

Forced aeration/ agitation is essential and is energy intensive

No aeration is required

Incomplete aeration (partial aerobic condition) leads to foul smell

Complete anaerobic conditions

Not effective in pathogen inactivation More than 99% Pathogens inactivation

Can not tolerate detergents/ phenyl Anaerobes can even degrade detergents/ phenyl

Generates large amount of sludge Sludge generation is very less

Repeated addition of bacteria/ enzyme is required for the process

One time bacterial inoculation is enough

Maintenance & recurring cost is high Minimal maintenance & no recurring cost

AEROBIC vs ANAEROBIC BIODEGRADATION

9

SEPTIC TANK BIODIGESTERS/BIO TANK

Requires larger space, bigger volume.

Requirement is 40 to 70% less.

Not efficient Effluent is well treated and safe

Sludge needs periodic evacuation

No such needs

Obnoxious smell No smell. Generation of odorless and

inflammable biogas

Maintenance intensive Only one time charging of Inoculums

Unhygienic disposal No such requirement

Water requirement is high Minimizes water consumption

Cost intensive Cheaper in long run

BIO TANKS vs SEPTIC TANK

Bacteria

10

The bacteria is developed and patented by D.R.D.O and is already

being used by Indian Army in high attitude regions even at -40 c.

BIO-TOILETS/BIO-DIGERSTORS-AN USP

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Components of Bio digesters

Poly Grass Mat Inoculum (Bacteria

Bio digester Tank

COMPARISON OF FRP BIO-DIGESTERS AND MASONRY

BIO-TANKS

12

FRP Bio-digesters Masonry Bio-tanks

Light weight & movable. Heavy and therefore suitable as

stationary tank only.

Easy installation as readymade FRP bio-

digesters can be transported to site.

Require in situ construction.

FRP bio-digester tank has to be manufactured

in factory under controlled conditions.

Can be constructed at site by skilled

mason as per requirement.

In case of any working problem/failure,

maintenance is difficult as FRP bio-digesters

are sealed units.

Maintenance is easy and necessary

repair can be carried out at site.

Cost including fabrication & transportation is

at the higher side.

Economical in general.

The expected life of FRP tank is 20 years. The expected life of masonry bio-tank is

more than 25 years.

Basis of Calculations

Total Volume of Masonry Bio Tank can be calculated on the basis of 72 hours retention

period ( 3 days) and water use of 45 litres per person per day for flushing requirement

(IS 1172: 1993). Accordingly the following volumes are suggested :

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No. of Users Vol of Masonry Bio Tank (M)

Recommended size(LXBXH)

5 0.79 1.5x0.75x0.70

10 1.50 2.0x1.00x0.75

15 2.22 2.25x1.10x0.90

20 2.97 2.25x1.10x1.20

50 7.46 3.55x1.75x1.20

100 14.85 4.5x2.2x1.5

150 22.27 5.5x2.7x1.5

200 29.70 5.5x3.6x1.5

300 44.63 7.00x4.25x1.5

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MASONRY BIO TANK UNDER CONTRUCTION

Conclusions

1. The most Eco friendly Sewerage system designed by DRDO

2. The reduction in size and cost of STP by almost 30-40%

3. The most efficient and economic sewerage system designed so far

4. Conversion of water by almost 90% which is re-usable

5. Reduction of water consumption by almost 50%

6. No major maintenance required so almost maintenance free

7. The designed life of Bio -digester is 25 years with one time bacteria fill

8. Methane as a bi product of the process can be used for various applications

depending upon the quantity produced.

15

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1. Site visit

2. Feasibility Studies

3. Detailed Project Report

4. Design & Engineering

5. Techno-Commercial offer

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METHODOLOGY @360DEGREE

6. Manufacturing at Works

7. Installation at Site

8. Trial run for design parameters

9. Final hand over

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