Industrial Discharges

Waste Water Treatment Redefined (MoDWS, Jan.24,2015 )

Sayali JoshiDirector, SERI, Punesayali@seriecotech.com

Indian Waters: Current Status

Pollution: Major Cause of Economic Losses,Stunted development in many regions

Issues of Waters – Rivers and Lakes

3

Local to Global Problem Decentralized issues Centralized infrastructure

without due credit to ecosystem processes

Encroachment Pollution Losses / alterations of

Hydrologic Cycle due to hydromodifications

Compliance With Rules & Regulations

National Environment Policy, 2006

Conservation of water resources through

livelihood

National Environment Policy, 2006

Conservation of water resources through

livelihood

Water Pollution (Prevention & Control) Act,

1974 & its amendment

Discharge standards

Water Pollution (Prevention & Control) Act,

1974 & its amendment

Discharge standards

National Action Plan for

Climate Change

(NAPCC), 2008Reduction of GHGs

National Action Plan for

Climate Change

(NAPCC), 2008Reduction of GHGs

Water Policy, 2012 & 2002

Water quality for prioritized uses

Water Policy, 2012 & 2002

Water quality for prioritized uses

Conventional Solutions

Typical Treatment Process Flow Chart

Industrial / Domestic wastewater

Screens

Grit Chamber

O & G Trap

Equalization Tank

Primary SettlingTank

Neutralization

Tank

Anaerobic DigesterAeration TankSecondaryClarifier

Treated Water for Gardening

Nitrate Removal

Phosphate removal

Sand Filter

Carbon Filter

Drinking WaterStorage Tank

Targets

1.Reduction in Methane Gas

2.Reduction in nitrate concentration

3.Elimination of fecal coliforms

Phys

ical S

ciences

and Engineerin

g

Ecotechnology

Chemical Sciences and Engineering W

ater Science

and Engineering

Life Sciences and Engineering

Earth Sciences and Engineering

River Restoration Lake Restoration

What is Ecotechnology?What is Ecotechnology?

Living systems in action for pollution treatmentLiving systems in action for pollution treatment

Expression of multi-species intelligence

Supple and magnanimous as possible, thus keeping away drastic and irreversible consequences when something wrong, unexpected happens

When changes occur in the natural systems due to external inputs, biogeochemical cycles and food chains are reorganized and balanced

Emergence of a new dynamic order suitable to the environmental changes superimposed on it

Aquatic Bio-chem EquilibriumPo

llutio

n

Enrichment

Multi-species

Singlespecies

Restoration

Bio-dynamics of aqua-environ-equilibrium

One organism’s waste is other’s food

Secondly, the green plants absorb carbon dioxide from the atmosphere

Pollutants transferred to natural cycles i. e. biogeochemical cycles

Carbon gets stored in vegetation and subsequently in the soil.

Living systems in action for pollution treatmentLiving systems in action for pollution treatment

Ecological RestorationNot infrastructure but eco-health improvement

It’s Not ASSET butPROCESS

Why Ecotechnology?Why Ecotechnology?

12Shrishti Eco-Research Institute (SERI), Pune

Cost Effective without compromising the results

SERI, Ecotechnology 13

First Pilot Plant at Bosch Chassis,

Jalgaon

Hydrasch Succession Pond Soil Scape Filter

Green Lake Green BridgeBiotower with Soil Scape Filter

SERI’s Eco-technological SolutionsSERI’s Eco-technological Solutions

“Ecotechnology is an applied science that seeks to fulfill human needs

while causing minimal ecological disrupution, by harnessing and subtly

manipulating natural forces to leverage their beneficial effects. “

- Wikipedia

SERI, Ecotechnology 14

Soil Scape Filter

It’s a simple slow sand filter topped with layers of bio-active (i.e. biologically activated) soil - Organotreat - ecofriendly material.

* Gravity filtration with attached growth; no sludge system; Area as good as Aerobic Treatment System

* Aerobic process but no demand of electricity for aeration

* Green plants maintain system aerobic & engineer growth of microorganisms suitable for degradation of pollutants

* Self – maintaining and self – sustaining system

* Minimum maintenance suitable to treat COD up to 2,00,000 mg / L

Applicable for Food & fruit industries, pharmaceutical & chemical units, electroplat ing, dair ies, edible oil refineries, petroleum waste, coolant waste, sewage etc.

“Sewer to Pure Stream using Breathing Soils”

The Soil Scape Filter – Vertical Eco-filtration

Shrishti Eco-Research Institute (SERI), Pune

The wastewater is made to pass through layers of bioactive soil – Ecofert – containing a consortium of bacteria which constitute a food chain. This food chain, for which the wastewater forms a primary resource, is self-sustaining and highly adaptable.

Depending on the design parameters, the Soil Scape Filtration Unit can also manage sporadic “shock-loading”.

It is not an inanimate machine, but a system that is very much alive. You take care of it and it takes care of your wastewater!

Input (Sewage):From 1000 - 10,00,000 litres / day (i.e. 1 - 1000 m3 / day) Output (Treated Water):80% of the input i.e. 0.8 - 800 m3 / day

Compliance with Pollution Control Board Norms

Sr. No

Parameter

Recommended standards for

discharge of waste water

Untreated waste water quality

Expected outlet quality from Soil

Scape FilterImprovement

1. pH 5.5 - 9 7.5 – 8.2 6.5 – 8.0 NA

2. TSS mg / L 100 180 60 - 80 55%

3. COD mg / L 250 400 100 – 150 62.5%

4. BOD mg / L 30 200 10 – 16 92%

5. Oil & grease mg / L 10 15 2 - 3 80%

Shrishti Eco-Research Institute (SERI), Pune

Shrishti Eco-Research Institute (SERI), Pune

Some previous Installation of Filtration system

The Soil Scape Filters at Jaipur, being used at a textile unit employing natural dyes for

colouring The treated water at this unit is equivalent to the untreated water diluted 4000 times! Notice the difference

Treated water

untreated water

At Nichrome Packaging Solutions, Shirwal

At Pimpri Chinchwad New Town Development Authority, Administration Building, Pune

Shrishti Eco-Research Institute (SERI), Pune

Particulars ASP Root Zone Soil Scape Filter1 Wastewater Source

applicable toPoint Source Point Source Point Source

2 Wastewater type applicable to

For domestic and industrial wastewaters containing non toxic organic matter only

For domestic and industrial wastewaters containing non toxic organic matter only

For domestic and industrial wastewaters, even for wastewater containing toxic organic and inorganic pollutants

3 Ancillary Units 4 units Requirement of equalization tank, neutralization, primary settling and secondary settling tanks.

Properly designed treatment tank, Graded filling material, Acclimatized, aerobic, anaerobic & facultativeBacteria,Acclimatized & selected indigenous plants.

One unit only The requirement is of neutralization if the pH of wastewater is not in the range of 6.5 - 8.5

4 Hydraulic loading m3/m2.d

1 - 3 0.06 – 0.25 1 - 2

5 HRT (h) 4 - 8 5 - 10 Nil

6 Organic loading (COD/BOD) Kg/ m3.d

0.32 - 16 0.25 5 - 10

Shrishti Eco-Research Institute (SERI), Pune

Particulars ASP Root Zone Soil Scape Filter7 COD/BOD

reduction range 85 - 95% 91% 90 – 98%

8 Sludge production (Kg/Kg BOD)

0.6 Nil Nil

9 Key parameters of process

pH, TSS, BOD, COD & Toxic Substance

pH, TSS, BOD, COD & Toxic Substance

pH

10 Limitations Even small concentrations disturb the process.

Even small concentrations disturb the process.

Nil because it is natural process

Economics

Particulars ASP Root Zone Soil Scape Filter1 Electricity

requirement (kW)300 50 Nil

2 Maintenance Skilled Skilled Simple /Unskilled

3 Installation cost per MLD in Rs. lakhs

120 180 90

4 Operational Cost for 1 m3/d

8/- 2/- 2/-

Innovative idea is to use sewage ecotreatment units parallel to roads in the city – in Pune city, total length of the roads is 1800 km out of which 25 % are having width 24 m.

If the width of about 2 – 4 m of Green channel for the sewage treatment is added to 24 m, then it will ease the problem of sewage conveyance to outskirts of city and issues like rehabilitation raised due to laying of sewage pipeline.

Advantages - Minimum electricity requirement- Treated wastewater can be use for fountains in the squares, recharging of groundwater, and rivers- Plants help in reducing dust pollution

Treatment of sewage from individual houses, colonies, apartments and slums along the roads

Green Bridges

The horizontal eco-filtration system A grafting of ecological system to treat the pollution flowing through the streams and rivers

Ecotechnological Solutions

Ecotechnological SolutionsEffectiveness of Green Bridge System

BeforeBefore

BeforeBefore

AfterAfter

Reduction in Foam

AfterAfter

Governments’ Environmental Accountability and Responsibility of Lotic (Stream) / Lentic (Lake) Restoration Project

ManagementSocial, Cultural

Necessity

Science, Engineering & Technology

Protection, Regulation & Conservation

48A51A (g)

Rebirth of Streams & LakesWith Ecotechnology & Ecological Engineering

Shrisht i Eco-Research Inst ituteB-106, Devgiri, Opp. P. L. Deshpande Garden, Near Ganesh Mala, Sinhagad Road, Pune – 411 030 Phone: +91-20 – 24253773 TeleFax: +91-20- 66206539 Email: seriecotech@yahoo.co.in

In association with –1.Green Infrastructure, Pune2.Yash Foundation, Ahmedabad3.WAPPSYS, Gurgaon4.ECOSYS, Pune5.TransNVtech, Pune

DeDicateD to the fonD memories of

Shri. Sandeep Joshi[7 Jan ‘67 – 23 Sep ‘14]

Founder Director, SERI.