Risk Assessment and Disaster Management of Contaminated HW ... M J Pervez ,Group Head and... · and document effectiveness Environmental Management Group, National Productivity Council

Risk Assessment and DisasterManagement of Contaminated HWSites and Methods of Remediation

M. J. PERVEZGroup Head & Director (Environment)

NATIONAL PRODUCTIVITY COUNCIL(Under Ministry of Commerce & Industry, Govt. of India)Utpadakta Bhavan, 5-6 Institutional Area, Lodi Road,

New Delhi – 110 003

Risk Assessment and DisasterManagement of Contaminated HWSites and Methods of Remediation

M. J. PERVEZGroup Head & Director (Environment)

NATIONAL PRODUCTIVITY COUNCIL(Under Ministry of Commerce & Industry, Govt. of India)Utpadakta Bhavan, 5-6 Institutional Area, Lodi Road,

New Delhi – 110 003

Contaminated HW Sites

An area of land in which the soil or underlyinggroundwater or sediment contains HazardousWaste or substance in an amount or concentrationthat exceeds environmental quality standards.

A site is contaminated if it is unsuitable forspecific uses of land, water and settlement

Environmental Management Group, National Productivity Council

An area of land in which the soil or underlyinggroundwater or sediment contains HazardousWaste or substance in an amount or concentrationthat exceeds environmental quality standards.

A site is contaminated if it is unsuitable forspecific uses of land, water and settlement

Potential Sources of Contaminants

Direct pipeline or outfall discharges into a water body oron land from industrial facilities/areas, waste watertreatment plants, unscientific waste disposal, andleakage/spillages from hazardous waste managementfacilities

Unwarranted chemical spills into a water body /onground

Surface runoff or erosion of contaminated soil fromwaste dumps, chemical storage facilities, open mines andmine waste piles on land


Direct pipeline or outfall discharges into a water body oron land from industrial facilities/areas, waste watertreatment plants, unscientific waste disposal, andleakage/spillages from hazardous waste managementfacilities

Unwarranted chemical spills into a water body /onground

Surface runoff or erosion of contaminated soil fromwaste dumps, chemical storage facilities, open mines andmine waste piles on land

Potential Sources of Contaminants

Air emissions from incinerators, pesticide applications,or other sources that may be transferred to a water bodythrough precipitation or direct deposition on land

Upwelling or seepage of contaminated ground water ornon-aqueous phase liquids (NAPL)

Direct disposal from docked and dry-docked ships, orrelease of contaminants from in-water structures andover-water structures or ship maintenance facilities


Air emissions from incinerators, pesticide applications,or other sources that may be transferred to a water bodythrough precipitation or direct deposition on land

Upwelling or seepage of contaminated ground water ornon-aqueous phase liquids (NAPL)

Direct disposal from docked and dry-docked ships, orrelease of contaminants from in-water structures andover-water structures or ship maintenance facilities

Illegal or indiscriminate dumping of hazardous &toxic wastes

Contamination of soil, ground & surface water

Health hazard to general public & animals

Environmental protection & resource conservation

Risk based Remediation will address


Illegal or indiscriminate dumping of hazardous &toxic wastes

Contamination of soil, ground & surface water

Health hazard to general public & animals

Environmental protection & resource conservation

Risk Assessment Risk assessment is considered a very useful tool in environmental

policy because it promises a rational and objective basis forpriority setting and decision making.

Risk assessment methodologies for contaminated land need to bebuilt on a sound scientific basis

The use of risk assessment as a formal component ofenvironmental policy has become important.

The main aim of integrating risk assessment with remediation ofcontaminated sites is to help in setting priorities for environmentalprotection in an objective and scientific way.


Risk assessment is considered a very useful tool in environmentalpolicy because it promises a rational and objective basis forpriority setting and decision making.

Risk assessment methodologies for contaminated land need to bebuilt on a sound scientific basis

The use of risk assessment as a formal component ofenvironmental policy has become important.

The main aim of integrating risk assessment with remediation ofcontaminated sites is to help in setting priorities for environmentalprotection in an objective and scientific way.

Risk Management PrinciplesEarly and immediate control of contaminants’ sources

Involve the community early and often

Coordinate with states, local governments, communities,and local active NGOs

Develop a conceptual simulation model that considerscontaminant flow rate and direction

Use an iterative approach in a risk-based framework

Carefully evaluate the assumptions and uncertaintiesassociated with site characterization and hydro-gelogy.


Early and immediate control of contaminants’ sources

Involve the community early and often

Coordinate with states, local governments, communities,and local active NGOs

Develop a conceptual simulation model that considerscontaminant flow rate and direction

Use an iterative approach in a risk-based framework

Carefully evaluate the assumptions and uncertaintiesassociated with site characterization and hydro-gelogy.

Risk Management Principles Select site-specific, project-specific, and sediment-

specific risk management approaches that will achieverisk-based goals

Ensure that sediment cleanup levels are clearly tied torisk management goals

Maximize the effectiveness of institutional controls andrecognize their limitations

Design remedies to minimize short-term risks whileachieving long-term environment protection

Monitor soil/groundwater remediation process to assessand document effectiveness


Select site-specific, project-specific, and sediment-specific risk management approaches that will achieverisk-based goals

Ensure that sediment cleanup levels are clearly tied torisk management goals

Maximize the effectiveness of institutional controls andrecognize their limitations

Design remedies to minimize short-term risks whileachieving long-term environment protection

Monitor soil/groundwater remediation process to assessand document effectiveness

Risk Assessmentthree distinct stages in the procedure

Hazard identification: identification of hazards thatmay cause adverse effects.

Exposure analysis: estimating the intensity, frequencyand duration of exposure to the hazardous agents inquestion. Depending on context, this can includetransport and fate of contaminants in groundwater andsurface waters.

Risk characterization: evaluation and conclusions thatresult from the previous steps.


Hazard identification: identification of hazards thatmay cause adverse effects.

Exposure analysis: estimating the intensity, frequencyand duration of exposure to the hazardous agents inquestion. Depending on context, this can includetransport and fate of contaminants in groundwater andsurface waters.

Risk characterization: evaluation and conclusions thatresult from the previous steps.

Framework for Risk Management


Major Steps for Site Remediation

Mapping of contaminated sites to be considered for

remediation.

Investigation & risk based assessment of

contaminated sites.

Development of Action Plan including technologies

and resources for remediation


Mapping of contaminated sites to be considered for

remediation.

Investigation & risk based assessment of

contaminated sites.

Development of Action Plan including technologies

and resources for remediation

Remedial Approaches for Contaminated Site

In-situ Approaches

Ex-situ Approaches


In-situ Approaches

Ex-situ Approaches

In-situ ApproachesIn-situ Capping:

Single-layer granular caps

Multi-layer granular caps

Combination granular/geotextile caps

Monitored Natural Recovery:

Physical isolation of contaminated sites

Biological transformation

Hybrid Approaches:

Thin layer placement of sand or other material to enhancerecovery via natural remediation


In-situ Capping:

Single-layer granular caps

Multi-layer granular caps

Combination granular/geotextile caps

Monitored Natural Recovery:

Physical isolation of contaminated sites

Biological transformation

Hybrid Approaches:

Thin layer placement of sand or other material to enhancerecovery via natural remediation

Ex-situ Approaches

Contaminants’ diversion or dewatering of site

Pumping out contaminated ground water for treatment

Excavation of contaminated sediment and transport forprocessing

Treatment of excavated contaminants at nearbyhazardous waste management facility

Disposal of contaminated sediments or residues insecured landfill.


Contaminants’ diversion or dewatering of site

Pumping out contaminated ground water for treatment

Excavation of contaminated sediment and transport forprocessing

Treatment of excavated contaminants at nearbyhazardous waste management facility

Disposal of contaminated sediments or residues insecured landfill.

Type of soil remediationtechnology

Process

Soil Washing Soil washing uses liquids (usually water, occasionally combinedwith solvents) and mechanical processes to scrub soils. Solvents areselected on the basis of their ability to solubilize specificcontaminants, and on their environmental and health effects

Soil Vapor Extraction Soil vapor extraction (SVE), also known as soil venting or vacuumextraction, is an accepted, recognized, and cost effective technologyfor remediating unsaturated soils contaminated with VOCs andSVOCs. Air ‘blowers’ are often used to aid the evaporation process(Fig. 1). Vacuums are applied through the wells near the source ofcontamination to evaporate the volatile constituents of thecontaminated mass which are subsequently withdrawn through anextraction well. Extracted vapors are then treated (commonly withcarbon adsorption) before being released into the atmosphere(USEPA, 1995a).

Type of Soil Remediation Technology


Soil Vapor Extraction Soil vapor extraction (SVE), also known as soil venting or vacuumextraction, is an accepted, recognized, and cost effective technologyfor remediating unsaturated soils contaminated with VOCs andSVOCs. Air ‘blowers’ are often used to aid the evaporation process(Fig. 1). Vacuums are applied through the wells near the source ofcontamination to evaporate the volatile constituents of thecontaminated mass which are subsequently withdrawn through anextraction well. Extracted vapors are then treated (commonly withcarbon adsorption) before being released into the atmosphere(USEPA, 1995a).

Type of Soil RemediationTechnology

Process

Land Farming Land farming is an above-ground remediation technology thatreduces the concentration of petroleum constituents 4present in soilsthrough processes associated with bioremediation.

Soil Flushing In situ soil flushing is an innovative remediation technology that‘floods’ contaminated soils with a solution that moves thecontaminants to an area where they can be removed (USEPA,1996e; Otterpohl, 2002; Logsdon et al., 2002; Di Palma et al.,2003). Soil flushing is accomplished by passing an extraction fluidthrough in-place soils using an injection or infiltration process (Fig.2). Contaminated groundwater and extraction fluids are capturedand pumped to the surface using standard groundwater extractionwells. Recovered groundwater and extraction fluids with theadsorbed contaminants may need treatment to meet the appropriatedischarge standards before being recycled or released to local,publicly owned, wastewater treatment works or receiving streams(FRTR, 1999h; RAAG, 2000; Otterpohl, 2002; Son et al., 2003).

Type of Soil Remediation Technology


In situ soil flushing is an innovative remediation technology that‘floods’ contaminated soils with a solution that moves thecontaminants to an area where they can be removed (USEPA,1996e; Otterpohl, 2002; Logsdon et al., 2002; Di Palma et al.,2003). Soil flushing is accomplished by passing an extraction fluidthrough in-place soils using an injection or infiltration process (Fig.2). Contaminated groundwater and extraction fluids are capturedand pumped to the surface using standard groundwater extractionwells. Recovered groundwater and extraction fluids with theadsorbed contaminants may need treatment to meet the appropriatedischarge standards before being recycled or released to local,publicly owned, wastewater treatment works or receiving streams(FRTR, 1999h; RAAG, 2000; Otterpohl, 2002; Son et al., 2003).

HAZARDOUS WASTE MANAGEMENT- About NPC’s Experience

HAZARDOUS WASTE MANAGEMENT- About NPC’s Experience

Inventorisation & Characterisation in several states More than 30 EIA studies for site identification Comprehensive Hazardous Waste Management

System for large industrial houses - IPCL, RIL,Godrej, Sterlite etc.

More than 20 hazardous waste SLFs Designed &developed

Old Hazardous waste dump sites investigated forRemediated in the State of UP, Rajasthan, Gujarat,West Bengal & Orissa .


Inventorisation & Characterisation in several states More than 30 EIA studies for site identification Comprehensive Hazardous Waste Management

System for large industrial houses - IPCL, RIL,Godrej, Sterlite etc.

More than 20 hazardous waste SLFs Designed &developed

Old Hazardous waste dump sites investigated forRemediated in the State of UP, Rajasthan, Gujarat,West Bengal & Orissa .

“Investigation & Remediation of Old HazardousWaste Dump Sites” in :

“Investigation & Remediation of Old HazardousWaste Dump Sites” in :

Bichri, Udaipur (Rajasthan); for MoEF, Govt. of India

Ahmedabad (Gujarat); for Ahmedabad Municipal Corporation

Vadodara (Gujarat); for M/s. Gujarat Alkalies & ChemicalsLtd. (GACL)

Vadodara (Gujarat); for Gujarat Pollution Control Board(GPCB)

West Bengal; for West Bengal Pollution Control Board(WBPCB)

Orissa; for Orissa State Pollution Control Board (OSPCB)


Bichri, Udaipur (Rajasthan); for MoEF, Govt. of India

Ahmedabad (Gujarat); for Ahmedabad Municipal Corporation

Vadodara (Gujarat); for M/s. Gujarat Alkalies & ChemicalsLtd. (GACL)

Vadodara (Gujarat); for Gujarat Pollution Control Board(GPCB)

West Bengal; for West Bengal Pollution Control Board(WBPCB)

Orissa; for Orissa State Pollution Control Board (OSPCB)

NPC’s Study On

Investigation of Identified HazardousWaste Dumpsites in Orissa & their

Remediation


NPC’s Study On

Investigation of Identified HazardousWaste Dumpsites in Orissa & their

Remediation

Sites Location

M /s Jaysh ree C h em ica ls3 S ites (H g )

G AN JAM

M /s IN D A L3 S ites (F , C N )

SAM BALPU RAN G U L

M /s N A LC O3 S ites (F , C N )

TALCH AR

M AYU RBH AN J

M /s K erb & C ies Ltd .*5 S ites (C r)M /s E C FC L td *2 S ites (F , V a )

RAU RKELA

K A LU N G A IN D U S .E S TA TE (C r)4 S ites


G AN JAM


SAM BALPU RAN G U L


TALCH AR

M AYU RBH AN J


RAU RKELA




G AN JAM


SAM BALPU RAN G U L


TALCH AR

M AYU RBH AN J


RAU RKELA



G AN JAM


SAM BALPU RAN G U L


TALCH AR

M AYU RBH AN J


RAU RKELA


Sites Location – Ganjam, Orrisa [M/s Jayshree Chemicals Ltd. (JCL - I, II & II)]


LAGOON No. 1

SIZE 28x23x3CAPPINGCOPMPLETED

Sites Description


70

70

SITE JCL-II

SITE JCL-I

SITE JCL-III

JCL = M/s Jayshree Chemicals Ltd.

Background of Concerned Industry

At Ganjam, there are 3 hazardous waste dumpsites associated

with M/s Jayshree Chemicals Ltd. (JCL). Of total 3 identified

sites, two are being used for waste dumping and one is closed.

M/s JCL is engaged in production of sodium hydroxide using

mercury cell based technology since 1967. The unit started

with the production capacity of 10 TPD of NaOH and its

present production capacity is 65-70 TPD


At Ganjam, there are 3 hazardous waste dumpsites associated

with M/s Jayshree Chemicals Ltd. (JCL). Of total 3 identified

sites, two are being used for waste dumping and one is closed.

M/s JCL is engaged in production of sodium hydroxide using

mercury cell based technology since 1967. The unit started

with the production capacity of 10 TPD of NaOH and its

present production capacity is 65-70 TPD

Description of sites at GanjamSite

CodeLocation Type of Waste Size & Quantity of

wastePollutantofConcern

Status ofsite

Remarks

SiteJCL I

Outside thepremises ofM/s JCL nearriverRushikulya

Brine sludgegeneratedduringtreatment ofbrine solutionwith BaCO3,Na2CO3, NaOH

Area – 3500 sq mAvg. Depth – 1 m3500 m3 i.e. 5000MT (consideringbulk density of 1.5T/m3)

Hg Presentlysite isclosed, andwas in usefor 22 year(1967-1989)

There is difference of 30000 MTin the generated waste &existing waste, which mayindicate that part brine sludgeduring that period sludge mayfind it way to river.

SiteJCL II

Insidepremises ofM/s JCL atwaste disposaldesignatedarea in 9 no.LDPE linedlagoons


Area – 12000 sq mAvg. Depth – 2-3 m30000 m3 i.e. 33000MT (consideringbulk density of 1.2T/m3)

Hg The site isuse forbrinesludgedumpingfor 15 yearssince 1989

Waste lying at site is nearlysame to the estimated wastequantity of 35000 MT which hasbeen generated during 1989-2004


SiteJCL II

Insidepremises ofM/s JCL atwaste disposaldesignatedarea in 9 no.LDPE linedlagoons


Area – 12000 sq mAvg. Depth – 2-3 m30000 m3 i.e. 33000MT (consideringbulk density of 1.2T/m3)

The site isuse forbrinesludgedumpingfor 15 yearssince 1989

Waste lying at site is nearlysame to the estimated wastequantity of 35000 MT which hasbeen generated during 1989-2004

SiteJCL III

Outside thepremises ofM/s JCL nearriverRushikulya

Hypo sludgefrom thetreatment ofchlorine

Area – 8000 sq mAvg. Depth – 2 m15000 m3 i.e. 18000MT (consideringbulk density of 1.2T/m3)

Hg The site isin use forhyposludgedumpingfor 37 yearssince 1967

There is difference of 13200 MTin the generated waste &existing waste, which mayindicate that part hypo sludgemay have gone to river duringhigh tides.

Site Features (Site JCL-I)

Site having brine sludge (brine sludge is 0.108 T/T of NaOH

(25 % moisture) , located near river Rushikulya

Site presently closed, was in use during year 1967-1989

No bottom, top or side liner provided

Covered with native soil 1 ft thick

Waste quantity around 5000 MT much less than theexpected waste of 35000 MT during 1967-1989


Site having brine sludge (brine sludge is 0.108 T/T of NaOH

(25 % moisture) , located near river Rushikulya

Site presently closed, was in use during year 1967-1989


Covered with native soil 1 ft thick

Waste quantity around 5000 MT much less than theexpected waste of 35000 MT during 1967-1989

Site JCL – II: Freshly Generated Brine Sludge Disposed in Active Ponds


Site JCL – II: Freshly Generated Brine Sludge Disposed in Active Ponds

Site JCL – II: Photograph Showing Active as well as Close Brine Sludge

Active BrineSludge Pond

Brine Sludge Pond coveredLDPE sheet & soil

Site JCL – II: H2SO4 being dumped on Brine Sludge for so called treatment


Site JCL – II: H2SO4 being dumped on Brine Sludge for so called treatment

Site JCL-III: HypoSludge being disposedon the bank of RiverRushikulya

Site JCL – III: Heaps of Hypo Sludge on the Bank of River


Site JCL – III: Heaps of Hypo Sludge on the Bank of River

Site JCL-III: WasteSample Collectionfrom Hypo Sludge

Site Features (Site JCL-II)

Located inside the premises of M/s JCL having 9 brinesludge ponds, 8 ponds already filled, 6 cover with coverliner

Site presently in use since year 1989

Bottom liner: Concrete Base, Soil, LDPE Sheet (0.3 mm)

Cover liner: Soil, LDPE Sheet (0.3 mm), Soil cover

Waste quantity around 33000 MT, nearly matchesexpected waste generated


Located inside the premises of M/s JCL having 9 brinesludge ponds, 8 ponds already filled, 6 cover with coverliner


Bottom liner: Concrete Base, Soil, LDPE Sheet (0.3 mm)

Cover liner: Soil, LDPE Sheet (0.3 mm), Soil cover

Waste quantity around 33000 MT, nearly matchesexpected waste generated

Site Features (Site JCL-III)

Site having hypo sludge (hypo sludge is 0.048 T/T of NaOH

(25 % moisture)) located on the bank of river Rushikulya



Waste expected to find way to river (& sea) during hightide

Waste quantity around 18000 MT, about nearly 13000MT less than expected waste generated


Site having hypo sludge (hypo sludge is 0.048 T/T of NaOH

(25 % moisture)) located on the bank of river Rushikulya



Waste expected to find way to river (& sea) during hightide

Waste quantity around 18000 MT, about nearly 13000MT less than expected waste generated

Methodology

• Information collection Investigation of waste dumpsites

– Collection of information, concerned industries,ground water board

– Preparation of Schematic Map of site

– Physical investigation of dump sites

– Assessment for ‘Active’ or ‘Passive’ Sites


• Information collection Investigation of waste dumpsites

– Collection of information, concerned industries,ground water board

– Preparation of Schematic Map of site

– Physical investigation of dump sites

– Assessment for ‘Active’ or ‘Passive’ Sites

• Quantification of waste dumped– Total quantity of hazardous waste dumped at site is

estimated and compared with production data availablefrom concerned Industry such as

1. Production capacity of unit

2. Information provided by units

3. SWGF

4. Operational period of unit

• Monitoring & Laboratory Analysis– Representative waste, soil & water samples collected in

two phases & analysed at laboratories

Methodology


• Quantification of waste dumped– Total quantity of hazardous waste dumped at site is

estimated and compared with production data availablefrom concerned Industry such as

1. Production capacity of unit

2. Information provided by units

3. SWGF

4. Operational period of unit

• Monitoring & Laboratory Analysis– Representative waste, soil & water samples collected in

two phases & analysed at laboratories

• Hazard Potential & Rehabilitation Plan– Assessment of hazard potential & extent of contamination to

natural resources (soil & groundwater) based on laboratoryanalysis results of soil & groundwater samples

– Preparation of remediation/rehabilitation plan based on

• information collected,

• on-site observations,

• soil & groundwater investigations &

• regulatory requirements

Methodology


• Hazard Potential & Rehabilitation Plan– Assessment of hazard potential & extent of contamination to

natural resources (soil & groundwater) based on laboratoryanalysis results of soil & groundwater samples

– Preparation of remediation/rehabilitation plan based on

• information collected,

• on-site observations,

• soil & groundwater investigations &

• regulatory requirements

Waste Sampling Details

Sample Code Location

SW5 Lagoon-5 at depth of 1 feet

SW6 Lagoon-5 at depth of 3-3.5 feet


SW6 Lagoon-5 at depth of 3-3.5 feet

SW7 Lagoon-1 at depth of 1 feet

SW8 Lagoon - 9 at depth of 1 feet

Analysis has been carried out in 1:10 eluate to determinewater soluble concentration

Waste Samples

Soil Samples

pH 9.9Hg 33.6 mg/kgpH 9.3

Hg 3.72 mg/kg

pH 6.2Hg 10 mg/kg

Site Investigation(Waste Analysis Site JCL-I & III)


pH 13.04Hg 67.6 mg/kg

pH 13.1Hg 70.5 mg/kg

pH 13.02Hg 24 mg/kg

pH 13.02Hg 82 mg/kg

pH 13.07Hg 30 mg/kg


pH 6.1Hg BDL

pH 6.2Hg 10 mg/kg

HWM Rules 2016 SCHEDULE II

Class Constituents Concentrationin mg/l

A7 Mercury 0.2

Site Investigation(Waste Analysis Site JCL-II)

LAGOON No. 1

SIZE 28x23x3

pH 8.7Hg 2000 mg/kg

pH 7.7Hg 966 mg/kg

pH 8.6Hg 1730 mg/kg

pH 6.9Hg 15 mg/kg

pH 4.0Hg 65 mg/kg



pH 8.7Hg 2000 mg/kg

pH 10.7Hg 440 mg/kg

pH 6.4Hg 12 mg/kg

Waste Samples

Soil Samples

Site Investigation (Groundwater Analysis)

pH 6.9Hg BDL

pH 6.6Hg BDL

pH 6.9Hg BDL

pH 7.7Hg BDL

pH 7.4Hg BDL

pH 7.6Hg BDL

pH 8.3Hg BDL

pH 7.1Hg BDL


pH 6.9Hg BDL

pH 3.3Hg BDL

pH 6.9Hg BDL

pH 5.7Hg BDL

pH 7.3Hg BDL

pH 7.7Hg BDL

Groundwater Samples

Surface water Samples

Hazard Potential RatingSl.No.

Criteria Min. toMax.Score

Site Scores

Site JCL-ISite JCL-

IISite JCL-III

1. Locational 25-125 94 91 103

2. Environmental 50-250 120 170 120

3. Managerial 25-125 125 107 50


3. Managerial 25-125 125 107 50

Total 100-500 339 368 273

Therefore, Comparative Hazard Potential Rating of sites

Site JCL-II (Brine Sludge), Maximum

Site JCL-I (Brine Sludge), Moderate

Site JCL-III (Hypo Sludge), Least

Remediation Plan (site specific)

to mitigate the adverse impacts on environment

(water & soil)

to minimize further contamination

to reduce hazard potential

to minimize health hazard to near by residents

to meet existing hazardous waste rules to the extent

possible

cost economics

With Objective


to mitigate the adverse impacts on environment

(water & soil)

to minimize further contamination

to reduce hazard potential

to minimize health hazard to near by residents

to meet existing hazardous waste rules to the extent

possible

cost economics

Remediation Plan (Site JCL-I)

Excavate entire waste (around 1m) & contaminated

soil (around 0.3 m)

Dispose waste & soil to Site

Fill excavated area with native soil followed by

vegetation cover


Excavate entire waste (around 1m) & contaminated

soil (around 0.3 m)

Dispose waste & soil to Site

Fill excavated area with native soil followed by

vegetation cover

Remediation Plan (Site JCL-II)

Case-1: Capping of site in-situ with cover liner

Case-2: Capping of site in-situ with cover liner& cut-off walls

Case-3: Disposal of entire waste/contaminatedsoil in newly developed SLF

Three options :


Case-1: Capping of site in-situ with cover liner

Case-2: Capping of site in-situ with cover liner& cut-off walls

Case-3: Disposal of entire waste/contaminatedsoil in newly developed SLF

LAGOON No. 1

SIZE 28x23x3CAPPING COPMPLETED

70

A

Laying ofCover Liner

Capping of Site In-situ with cut-off walls


100WASTE FROM SITEJCL-I

A

Place the cut-off Wall

POND-2 POND-5 POND-6 POND-7

GROUNDLEVEL

SOIL EMBANKMENT1 M HEIGHT

WASTE FILLING UPTO 3 M HT AT

MIDDLESOILEMBANKMENT

1 M HEIGHTTOP COVBER

LINER

SECTION AT A-A

CUT-OFF WALLSUPTO IMPERMEVIOUSLAYER (15-20 M)

Capping of Site In-situ cut-off walls


DETAILS OF EMBANKMENT AND COVER LINER

COVERLINER

1 M

COMPACTEDWASTE

OUTERSLOPE 1:2.5

INNERSLOPE 1:2

ANCHORTRENCH

1 M

5.5 M

COMPACTED CLAY 60 CMTHICK

HDPE LINER 1.5 MM

DRAINAGE GEONET WITHONE SIDE GEOTEXT

VEGITAIVE SOIL 0F 60 CM

A

A

COMPACTEDWASTE BODY

COMPACTED ANDGRADED SOILCOVER OF 60 CM

Remediation PlanRIVER SIDE A


A

SIDE SLOPEAT 1:5

SECTION ALONG A-A

SLOPE OFCOVER AT 5%SIDE SLOPE

AT 1:5

FILLED UP ANDCOMPACTEDHYPO SLUDGE

RIVERSIDE

1 M HT

1 MDEPTH

AVERAGEGROUND LEVEL

TOP COVERDETAILS

COMPACTEDWASTE BODY

DETAILS OF TOP COVER

PLAN

Item Description of work Quantity Unit Unit Price(Rs)

Total(Rs in lakhs)

1 Excavation of brine sludge of1 m average depth and

4500 M3 100 4.5

Cost Estimates (Site JCL-I)


1 Excavation of brine sludge of1 m average depth andtransportation to the site -II forcapping.

4500 M3 100 4.5

2 Filling up with borrow soil 4500 M3 250 11.25

Total 15.75

Cost Estimates (Site JCL-II)

Item Description of work Quantity Unit UnitPrice(Rs)

Total(Rs in lakhs)

1 Excavation of hypo sludgefrom cell-1, 7 & 8 m averagedepth and filling up in thecapping area

8000 M3 80 6.4

2 Construction of side 975 M3 250 2.5

CASE-1 : CAPPING OF WASTE


2 Construction of sideembankment of 1 m height

975 M3 250 2.5

3 Installation of compactclay layer

1920 M3 250 4.8

4 Installation of 1.5 mm thickHDPE liner

6000 M2 300 18.0

5 Drainage geonet with on sidegeotextile

7000 M2 250 17.5

6 Installation of top vegetativesoil layer of 0.6 m thickness

3200 M3 200 6.4

TOTAL 55.6

CASE-2 : CAPPING OF WASTE WITH CUT-OFF WALLS

S.no. Particulars Cost (Rs. in lakhs)

1. Capping of waste 55.6

2. Putting cut-off walls 15.2

Total 70.8

CASE-3 : DISPOSAL OF WASTE IN NEWLY BUILD LANDFILL SITE or atCSLF


CASE-3 : DISPOSAL OF WASTE IN NEWLY BUILD LANDFILL SITE or atCSLF

S.no. Particulars Cost (Rs. in lakhs)

1. Development of landfill 105.0

2. Covering of landfill 70.0

3. Disposal of waste into CSLF (@ Rs 700/-) 245.0

Total 350.0

Cost Estimates (Site JCL-III)

Item Description of work Quantity Unit UnitPrice(Rs)

Total(Rs in lakhs)

1 Excavation of the side hypeembankment and filling up the3 ponds and compacting and

7200 M3 60 4.32


3 ponds and compacting andgrading of the top at requiredslope.

2 Soil cover of 0.6 m thickabove the hypo waste.

4400 M3 250 11.0

TOTAL 15.32

Thank You


Thank You

Documents

Risk Assessment and Disaster Management of Contaminated HW ... M J Pervez ,Group Head and... · and document effectiveness Environmental Management Group, National Productivity Council