SPMLInfracompletedInstallationof220KvGISSubstationatAlipurduar,WestBengal

WASTEWATERTheUntappedResource

DecentralizedSewerageSystematMiraBhayandar,Maharashtra

IntegratedSewerageSystemforCleanGanga-Kanpur

WastewaterTreatmentPlantsBuiltbySPMLInfra

ProjectUpdate

MediaBuzz

SPMLInfraAnnualReport2016-17

ModernTechnologyforWastewaterTreatment

Theconstructionanderectionworkof220KvGasInsulated Substation (GIS) is completed inAlipurduar, West Bengal with the charging of thesystemon31stAugust,2017.TheGISSubstationistechnologicallyadvancedandmorereliablethanthetraditionalair-insulatedsubstations(AIS)asitusesasuperiordielectricgas,SF6,atmoderatepressureforphase-to-phaseandphase-to-groundinsulation.Itisanautomatedsystemthatcouldbecontrolledfromacomputer; iscompactand lesserspace isrequiredforinstallation;andismaintenancefreefornext20years.Theprojectwillhelpourclient,WestBengalStateElectricityTransmissionCompanyLimitedtoprovideaccuratevoltagelevelofpowersupplyinthedesignatedareas.SPMLInfraisexecutingasimilarprojectinSikar,Rajasthan.

SPML INFRA COMPLETED INSTALLATION OF 220 KV GIS SUBSTATION AT ALIPURDUAR, WEST BENGAL

SEPTEMBER,2017

INTHISISSUE

220kVGISSubstation,Alipurduar

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Inthenextoneortwodecades,thelargestratesofurbanization will occur in the smaller urbansettlements having 5 to 10 lac residents. Thiswillgreatly impact wastewater production and thepotential forbothdecentralizedtreatmentanduse.By 2030, global demand for energy and water isexpectedtogrowby40%and50%,respectively.Mostofthisgrowthwillbeincities,whichwillrequirenewapproachestowastewatermanagement.

Over 80% of all the wastewater from our homes,cities,industriesandagricultureflowsbacktowaterbodieswithoutbeing treatedor reused–pollutingthe already scarce fresh water sources and losingvaluablenutrientsandotherrecoverablematerials.Itis estimated that only 20%ofwastewater is beingtreated globally and treatment capacity typicallydepends on the income level of the country. Onaverage,high-incomecountries treatabout70%ofthewastewatertheygenerate,whilethatratiodropsto 38% in upper middle-income countries and to28% in lower middle-income countries. In low-income countries, only 8% of industrial andmunicipalwastewater undergoes treatment of anykind.

Wastewater management is being seriouslyneglected,andwastewaterisgrosslyundervaluedasa potentially affordable and sustainable source ofwater,itneedstobeseenasaresource,ratherthanaburdentobedisposedof.

Therearemanytreatmentprocessesandoperationalsystemsthatwillallowustousewastewatertomeetthe water demand in growing cities, supportsustainable agriculture, and enhance energyproduction and industrial development, thereforecontributing to a more sustainable, efficient andequitablewateruse.

Wecannotallowwastewatertobedisposedofina

WASTEWATER THE UNTAPPED RESOURCE

manner it is being done presently, is dangerous tohumanbeinganddamagingthenaturalenvironment.Inadequate wastewater management has also adirect impact on ecosystems and the services theyprovide.

95%ofwater thatenters thehomegoesdown thedraindaily.

Israelrecycles80percentofitssewage,usingmuchofitforirrigation.

Singapore's wastewater recycling plant usesadvanced membrane techniques to produce waterthatiscleanenoughtobeusedfordrinking.

SPML Infra has contributed significantly in thetreatmentofwastewaterfromdesigntoapplicationof technology, construction to management andoperation of sewage treatment plants, commoneffluent treatment plants, tertiary andwater reusetreatmentplants,sludgetreatment,bio-gas&powergeneration.

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Globalwaterreuseafteradvancedtertiarytreatment

DECENTRALIZED SEWERAGE SYSTEMAT MIRA BHAYANDAR, MAHARASHTRA

SEPTEMBER,2017

Mira Bhayandar is located at the northern threshhold of Greater Mumbai. Being a satellite town of Mumbai, it has been identified as a growth center around Mumbai, is well connected by suburban railway and Mumbai Ahmadabad national highway. Due to close proximity to Mumbai, Mira Bhayandar is experiencing rapid urban growth due to easy access and economical property cost and rent.

SPML Infra has executed decentralized sewerage system having separate collection and treatment facilities in 10 zones across Mira Bahayandar. This is one of India's largest and first comprehensive underground sewerage system having:

- 115 kilometres of sewer lines

- 10 pumping stations

- 10 sewage treatment plants of various capacities ranging from 7 MLD to 17 MLD with total capacity of 115 MLD having advanced MBBR treatment technology with high level treatment efficiency.

SalientFeaturesoftheProject

- 1sttimeinIndia,adecentralizedsewerageschemewheresewageiscollectedandtreatedatthepointofgeneration

- AllthesewagetreatmentplantsareinresidentialareasusingMBBRtechnologythatrequireslesspowerconsumptionandlesserspacethananyconventionalsewagetreatmentplants;nofoulsmellorbadodor

- Environmentalpollutionisundercontrol;healthbenefits,epidemicsandviraldiseasesreducedeffectivelyandoverallcleanenvironment

- Planneddisposaloftreatedwastewaterhasreducedstagnationofwaterinstormwaterdrains

- Septictanksarecompletelyeliminatedwhichreducedsoil&subsoilwaterpollution

- Bettersanitationandcleanlinessinthestreetsandroads

11MLDDecentralisedSewageTreatmentPlantatMiraBhayander

13MLDDecentralisedSewageTreatmentPlantatMiraBhayander

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SEPTEMBER,2017

INTEGRATED SEWERAGE SYSTEM FOR CLEAN GANGA - KANPUR

Hon'bleChiefMinisterofUttarPradesh,ShriYogiAdityanathinauguratedtheIntegratedSewerageSystem on 7 September 2017 during an event.Kanpur, the heavily industrialized city of UttarPradesh is having tanneries and other pollutingindustries that pose the biggest challenge of thegigantictaskofcleanGangamission.Themaindrainofthecitydischargesthehighestamountofuntreatedsewage (@138 MLD) into the river and passesthroughheavilypopulatedandcongestedareas.

SPML Infra has recently completed the KanpurSewerageSystemwhichisstrategicallyplannedandexecuted to treat the sewage and effluent of thecurrentpopulationofmorethan3millionpeopleandnumerousindustrieswithinbuiltcapacitytohandlethefuturedemandsfornext30years.

Theprojecthas:

- 130kmseweragenetworkhavingpipesfrom 150mmto1800mmdia

- Threepumpingstationsof14,14and42MLD

- 42MLDsewagetreatmentplantbasedon activatedsludgeprocessincludingpower generationfrombiogas

- 3biogasenginesof380KVAcapacities

1140Kwpowergenerationwhichwillfulfillthe partialpowerrequirementoftheplant.

CMUttarPradeshinauguratingKanpurSewerageSystem,7September2017

42MLDSewageTretamentPlant,Kanpur

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SPMLInfraprovidessolutionsforpropertreatmentanddisposalofmunicipalandindustrialwastewatertoensurethatthegeneratedwastewaterdoesnotharmourdelicateecosystemandisrecycledforfurtherusage.Italsohelpsindustriestomeettheeverincreasingindustrialwastewaterregulations,whileimprovingefficiencyandreducingwastedisposalcosts.SPMLhasconstructedanumberofsewageandeffluenttreatmentplantsincludingoneofthelargestSTP–240MLDinAhmedabadandCETP-35MLDinDelhi.

WASTEWATER TREATMENT PLANTS BUILT BY SPML INFRA

SEWAGETREATMENTPLANTS COMMONEFFLUENTTREATMENTPLANTS

240MLDSewageTreatmentPlant,Ahmedabad,Gujarat

72MLDSewageTreatmentPlant,Okhla,Delhi

70MLDSewageTreatmentPlant,Nasik,Maharashtra

35MLDCommonEffluentTreatmentPlant,BawanaIndustrialArea,Delhi

24MLDCommonEffluentTreatmentPlant,OkhlaIndustrialArea,Delhi

21.6MLDCommonEffluentTreatmentPlant,NarainaIndustrialArea,Delhi

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PROJECT UPDATE

Hon'ble Chief Minister of Karnataka, ShriSiddaramaiahhasinauguratedwatersupplyschemefor3zonesnamely-Gonal,RaghavendraColony,andVajpayeeLayouthaving1203householdconnectionsunder Ballari Water Supply Project on 13thSeptember,2017.SPMLInfraisproposedtocompletephase-1(28Zone)having50,253connectionsofthecityareabyApril2018.

CMKarnatakaInauguratesBallariWaterSupplyProjects-13September2017

InterviewofSPMLInfraChairman,Mr.SubhashSethipublishedinprominent industrymagazines, EPCWorld, August 2017, specialissueonInfrastructureinMaharashtraandanarticlepublishedinIndian Infrastructure, August 2017 issue covering 3 years ofdevelopmentinwaterandwastemanagementsectorunderseveraldevelopmentschemesinitiatedbygovt.ofIndia.

CLICKHERETOREAD>> CLICKHERETOREAD>>

SEPTEMBER,2017

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SPML INFRA ANNUAL REPORT 2016-17

SPML Infra Annual Report 2016-17 highlightingrecent successes of organization – financial andsectoral. The report also highlights the remarkableachievementsofcompletinganumberofwaterandpower projects; a number of prestigious awardscompany has received in past years; severaltechnologyledinitiativesamongothers.

CLICKHERETOREAD>>

BELLARI WATER SUPPLY SCHEME, KARNATAKA

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Traditional methods of wastewater treatment arebeingincreasinglychallengedduetoidentificationofmore contaminants, increasing industrial activitiesand ever shrinking fresh water sources. Theeffectivenessof conventional treatmentprocesshasbecomelimitedoverthelasttwodecadesbecauseofnew challenges; increased knowledge about theconsequencesfromwaterpollutionhaveenforcedtheimplementation of much stricter regulations by

authorities expanding the scope of treatment andlowering the maximum contaminant levels set forwastewater discharge. Among them, the mostsignificant are to remove nutrients (nitrogen andphosphorus) and synthetic organic compounds(SOCs)becauseoftheirsignificantimpactsonpublichealth and the environment. Wastewater may alsocarry carcinogens increasing the risk of cancersamong vulnerable people who could directly orindirectlycomeincontactwithsuchwastewater.So,itis pertinent to properly treat wastewater before itrunsdownthewaterstream.

Withtherapidurbanizationinthecountry,therehasbeenacommensurateincreaseintheneedforwater.So, there is anurgentneed for treatingwastewaterusingmoderntechnologyandrecoverasmuchusablewateraspossible.ButthefactisamajorityoftownsandcitiesinIndiahaveeithernosewerageandsewagetreatment facilities or the treatment facilities arehighlyinadequate.

ThereisahugegapbetweenwastewatergenerationanditstreatmentinIndia.Eventheexistingtreatmentcapacity is also not effectively utilized due toinefficient operation and maintenance of existingplantsandsewagepumpingstations.Inanumberofcities, the existing treatment capacity remainsunderutilizedwhilealotofsewageisdischarged

without treatment. It is estimated that wastewaterfromurbancentresmaycross120,000millionlitresdaily (MLD) by 2051 and that rural Indiawill alsogenerate not less than 50,000 MLD. However,wastewatermanagement plans do not address thisincreasingpaceofwastewatergeneration

The conventional wastewater treatment processesare expensive and require complex operations andmaintenance. Due to improper design, poormaintenance, frequent electricity break downs andlackoftechnicalmanpower,thefacilitiesconstructedto treat wastewater do not function properly andremainclosedmostofthetime.

One of the majorp ro b l ems w i t h w a s t e w a t e r treatment methodsis that none of thea v a i l a b l e technologies has adirect economicreturn. Due to noeconomic return, local authoritiesaregenerallynotinterestedintakingupwastewatertreatment.

Innovationsintheareaofwastewatertreatmentfocusontheprinciple thatwastewatercanbearesource.Some of the new technologies being used forwastewater treatment globally to reclaim theresourcesare:

MEMBRANEFILTRATION

Membranefiltration isessential foradvancedwaterreclamation systems. Micro and ultra-filtrationmembranes provide excellent pre-treatment toremove a wide range of dissolved contaminants.Membranebioreactor(MBR)filtrationtechnologyisbeing extensively used for advanced treatment toproduce water for reuse by the industries. ThetreatmentwithMBRfollowedbyROandUVtreatmentisidealforproducingnon-potablewater.

NANOTECHNOLOGY

Nanotechnology has revolutionized the treatmentprocessthatcaneasilymergewithothertechnologiesandmodify,endorseandclarifyanyexistingconcept.Nanotechnologyarebeinginvestigatedforproducingfabrication of membranes from nano materials fordecomposition of toxic compounds during thetreatment.Itwillalsoprovideeffectivesegregationofmetals, bimetallic nanoparticles, mixed oxides,zeolites and carbon compounds etc from thewastewater.

AUTOMATICVARIABLEFILTRATION(AVF)TECHNOLOGY

InAutomatedVariableFiltration(AVF)technologyforwastewatertreatment,upwardflowofinfluentcleansthe downward flow of filter media during thetreatmentprocessthussavingonfresh

MODERN TECHNOLOGY FORWASTEWATER TREATMENT

Aginginfrastructure,conventionaltechnologiesandmicrobialorchemicalcontaminationaremajorthreatstopublichealth.

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water used for filter cleaning. In AVF treatmentprocess, two stage series configuration is used toproduceveryhighqualityfiltrate.Thismodeisidealforrefiningsecondarywastewaterforreuse.

MICROBIALFUELCELLS

Microbial fuel cells is a breakthrough technologywhere electrical energy could be extracted directlyfromorganicmatterpresentinthewastestreambyusing electron transfer to capture the energyproducedbymicroorganismsduringthewastewatertreatment.Thistechnologyisstillinitsdevelopmentstageand significantadvances inprocessefficiencyandeconomicswillbenecessarybefore it couldbeusedwidelytoproduceelectricalenergydirectlyfromorganicmatterpresentinthewastewater.

ADVANCEDPHOTOOXIDATIONPROCESSES(APOP)

It is a new concept that uses UV-lamps with highenergy intensity to el iminate pathogenic microorganisms, endocrine disruptors and otherhazardous compounds from wastewater. Theprincipleinthesystemisthatlightfromultraviolet

lampsisabletodestroyinsidebacteriaandremovechemical substances from wastewater with use ofoxidants.

NEWURBANSANITATIONTECHNOLOGY

Thistechnologyaimstoreuseofenergyandmineralswith a combination of electro-flocculation (Elflox)and anaerobic digestion in wastewater treatment.Elfloxtreatmentseparatestheorganicpollutionfromwastewater with electrocoagulation reactor.Anaerobic fermentation technology generatesoptimumbiogaswhichcanbeconvertedintoenergyforcaptiveutilization.

COKEOVEN(CO)BYPRODUCTTREATMENT

The steel producing plants in India are using thistreatment process to recover ammonia fromcokeovenliquid.Waterpollutionproblemswouldbeworseifammoniaisnotrecovered,themostpollutingamongallthewastesfromproductionunits.Thetwomost common processes used for the treatment ofcokeoven effluents are trickling filter and activatedsludgeprocess.

URINESEPARATINGPROCESS

The development of urine separating toilets andtechnologies for treating it to produce fertilizerproductsisakeytomanagingnutrientswithminimalrequirements for outside resources, such asadditional energy. Producing the same amount ofpetroleum-based, nitrogen-rich fertilizer takes anenormous amount of energy and non-renewableresources.Urine-separatingtoiletshavealreadybeendevelopedandadvancedresearchisgoingontorefineitfurtherandusethemforwastewatermanagementandcreatingresources.

With the greater awareness of the need andimportance of wastewater treatment among thegeneral public, authorities and policy makers, it ishopedthatsoonalargershareofwastewaterwouldstartgettingpropertreatmentwiththehelpoflatesttechnologiesandnotjustanewsourceofusablewaterwouldbeseenonthehorizonbutalsotheriversandlakes in the country would continue to not justsupportbutalsohelpenrichavariedaquaticlife.

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