Land Contamination: Technical Guidance on Special Sites: Acid Tar ...

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Table 6.1 - Remedial Options/Techniques – Soils (continued)RemedialTechnologyChemical basedtechnologiesThermal basedsystemsPotentialEffectiveness ofTechnologyDCR has beeneffective. Moreconventionalneutralisation (lime)will provide somebenefit but may notbe as enduring asDCRHigh temperatureincineration isprovenOperationalRequirementsNeed transportabletreatment plant (seebox under DCR)Availability ofcommercialincinerator withappropriateIPC/IPPCauthorisation.Cement kilns arealso theoreticallyattractive due to thehigh residence timesand the ability toabsorb sulphurdioxide in thecement, although asingle project wouldbe unlikely to beattractive enoughfor IPC/IPPClicence implicationsto be addressedSpecialRequirementsPermitMobile plant wastemanagement licence.Liaison with localauthority EnvironmentalHealth required.In most cases, pretreatmenton site wouldbe needed to reduceemissions of sulphurdioxide and probably toreduce water content.Waste managementlicence will be requiredMay be IPC/IPPCprocess under certaincircumstancesSocial/CommunityImpact IssuesThere is scope to reduceemissions by capturingand treating. Trafficimpacts will depend onwhether final disposal oftreated material is on siteor off-siteAs for excavation anddisposalInformationRequirementsAs for excavation anddisposal, plus laboratorytrials on the specificwastes to be treated toestablish leachability,compressive strength,etc.As for excavation anddisposal. Anychlorinated wastes thathad been co-disposed orPVC would be an issueregarding possibledioxin generationPost Remediation ConditionsShortTermValidation√√Long TermMonitoringX (althoughon-sitedisposal willrequirelonger-termgroundwatermonitoring)OtherR&D <strong>Technical</strong> Report P5-042/TR/04 42
Table 6.2 - Remedial Options/Techniques - GroundwaterRemedialTechnologyGroundwater pump& treatSoil vapourextraction or airspargingPotentialEffectiveness ofTechnologyEffective forremoval of freephase oils and pHadjustment. Canalso be used forsubsequent airstrippingof BTEXcompounds.Can also be used forhydrauliccontainment of aplumeOnly for sites wherethe principal issue isBTEX (benzole)contamination asthe technique is notappropriate formiddle or heavy endoils. Ideallyrequires permeable,uniform geologyOperationalRequirementsConventional wells,pumps, blowers, etc.based on sitespecificdesignConventional wells,pumps, blowers, etc.based on sitespecificdesign.Treatment ofemissions to airlikely to be requiredSpecial PermitRequirementsAbstraction licence.Discharge ConsentMobile plant wastemanagement licencerequired althoughEnvironment Agencyhas an enforcementposition in this regardMobile plant wastemanagement licencerequired.Social/CommunityImpact IssuesUnlikely to be majorUnlikely to be majorInformationRequirementsCharacterisation ofgroundwater, nature offree phase oils anddissolved hydrocarbonsCharacterisation ofgroundwater, nature offree phase oils anddissolved hydrocarbonsPost Remediation ConditionsShortTermValidation√√Long TermMonitoring√√OtherR&D <strong>Technical</strong> Report P5-042/TR/04 43
Page 1 and 2: Land Conta
Page 3 and 4: CONTENTSFOREWORDiGLOSSARYii1. Intro
Page 5 and 6: FOREWORDPart IIA of the Environment
Page 7 and 8: CresolsCreosoteDCRDesorptionDesulph
Page 9 and 10: PVCRCRASelosafeSodium saltsSodium h
Page 11 and 12: 1. INTRODUCTION1.1 BackgroundThis r
Page 13 and 14: SECTION 2: INDUSTRIAL PROCESS/FACIL
Page 15 and 16: 1.5 Linkages Between the Gu
Page 17 and 18: 2.1.2 Overview of acid tar lagoon s
Page 19 and 20: Overall CommentsAcid tars can be of
Page 21 and 22: White Oil• Acid tar lagoons from
Page 23 and 24: Box 2.5 Scenario: Acid tar disposal
Page 25 and 26: 3. CHEMICAL AND PHYSICAL CHARACTERI
Page 27 and 28: Table 3.1 - General Physical Charac
Page 29 and 30: The chemicals listed in Table B.1,
Page 31 and 32: 4.2.3 Common mistakesIt is possible
Page 33 and 34: Geophysical methods, such as resist
Page 35 and 36: Investigation locations will need t
Page 37 and 38: • gas chromatography by simulatin
Page 39 and 40: 5.2.2 Water environmentThere is lit
Page 41 and 42: 5.3 Assessment of Investigation Dat
Page 43 and 44: 6. REMEDIATION ASPECTSKEY QUESTIONS
Page 45 and 46: 6.2.5 Solidification and stabilisat
Page 47 and 48: Box 6.1 Example of Remediation of A
Page 49 and 50: 6.3 Natural AttenuationNatural atte
Page 51: Table 6.1 - Remedial Options/Techni
Page 55 and 56: 6.4 ValidationThe principles of val
Page 57 and 58: • all personnel should follow a d
Page 59 and 60: Verschueren (1983) Handbook of Envi
Page 61 and 62: USEPA. Innovative Site Remediation

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