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

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