Search results for "Septic tank"

showing 5 items of 5 documents

Domestic sewage treatment plant or ecological septic tank

2017

Waste managementmedia_common.quotation_subjectCost analysisIndustrial chemistryEnvironmental scienceSewage treatmentSeptic tankmedia_commonCzasopismo Techniczne
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Anaerobic on-site black water and kitchen waste treatment using UASB-septic tanks at low temperatures.

2006

Anaerobic on-site treatment of black water (BW) and a mixture of black water and kitchen waste (BWKW) was studied in a two-phased upflow anaerobic sludge blanket septic tank (UASBst) at 10–20 °C. The processes were fed either continuously or discontinuously (twice per weekday). Moreover, BWKW was post-treated for nitrogen removal in an intermittently aerated moving bed biofilm reactor (MBBR) at 20 °C. Removal of total chemical oxygen demand (CODt) was efficient at minimum 90% with all three UASBst at all temperatures. Removal of dissolved COD (CODdis) was also high at approx. 70% with continuously fed BW and discontinuously fed BWKW, while with discontinuous BW feeding it was 20%. Temperatu…

Environmental EngineeringDenitrificationWaste managementSewageMoving bed biofilm reactormedia_common.quotation_subjectChemical oxygen demandTemperaturechemistry.chemical_elementSeptic tankPulp and paper industryWaste treatmentchemistryAnaerobiosisAerationAnaerobic exerciseCarbonEnvironmental Restoration and RemediationWater Science and Technologymedia_commonWater science and technology : a journal of the International Association on Water Pollution Research
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Anaerobic on-site treatment of black water and dairy parlour wastewater in UASB-septic tanks at low temperatures.

2004

Anaerobic on-site treatment of synthetic black water (BW) and dairy parlour wastewater (DPWW) was studied in two-phased upflow anaerobic sludge blanket (UASB)-septic tanks at low temperatures (10-20 degrees C). At all temperatures, total chemical oxygen demand (COD(t)) removal was above 90% with BW and above 80% with DPWW and removal of total suspended solids (TSS) above 90% with both wastewaters. Moreover, dissolved COD (COD(dis)) removal was approx. 70% with both wastewaters indicating good biological activity of the sludges. With BW, a single-phased reactor was found sufficient for good COD removals, while with DPWW, a two-phased process was required. Temperature optimum of reactor sludg…

Environmental EngineeringTime Factorsmedia_common.quotation_subjectSeptic tankWaste Disposal FluidWater PurificationBacteria AnaerobicNutrientBioreactorsBioreactorWaste Management and DisposalWater Science and TechnologyCivil and Structural Engineeringmedia_commonTotal suspended solidsBlackwaterWaste managementSewageChemistryEcological ModelingChemical oxygen demandTemperatureWaterPulp and paper industryPollutionOxygenDairyingWastewaterFacility Design and ConstructionAnaerobic exerciseWater research
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Effect of temperature on anaerobic treatment of black water in UASB-septic tank systems

2007

The effect of northern European seasonal temperature changes and low temperature on the performance of upflow anaerobic sludge blanket (UASB)-septic tanks treating black water was studied. Three UASB-septic tanks were monitored with different operational parameters and at different temperatures. The results indicated the feasibility of the UASB-septic tank for (pre)treatment of black water at low temperatures with respect to removal of suspended solids and dissolved organic material. Inoculum sludge had little effect on COD(ss) removal, though in the start-up phase some poorly adapted inoculum disintegrated and washed out, thus requiring consideration when designing the process. Removal of …

waste-wateranaërobe verteerdersdigestionWaste Disposal FluidBioreactorsvergelijkend onderzoekAnaerobiosisexcretenToilet FacilitiesWaste Management and Disposalslibzuiveringmedia_commonSuspended solidsSewageWaste managementafvalwaterbehandelingfeasibility studiesTemperaturehouseholdsGeneral Medicineslibvergistingsludge treatmentWastewaterdomestic sewageenvironmental temperatureMilieutechnologieSewage treatmentSeasonsEnvironmental Engineeringmedia_common.quotation_subjectBioengineeringSeptic tanksludge digestionModels BiologicalWater Purificationexcretahaalbaarheidsstudiestemperatuurcomparative researchEffluentWIMEKRenewable Energy Sustainability and the Environmentreactorstemperaturehuishoudensanaerobic digestersAnaerobic digestionwaste water treatmentEnvironmental TechnologyFeasibility StudiesEnvironmental scienceSewage sludge treatmentWaste disposalomgevingstemperatuur
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Anaerobic on-site treatment of kitchen waste in combination with black water in UASB-septic tanks at low temperatures.

2006

Anaerobic on-site treatment of a mixture of black water and kitchen waste (BWKW) was studied using two-phased upflow anaerobic sludge blanket (UASB) septic tanks at the low temperatures of 20 and 10 degrees C. Black water (BW) was also treated alone as reference. The two-phased UASB-septic tanks removed over 95% of total suspended solids (TSS) and 90% of total chemical oxygen demand (COD(t)) from both BWKW (effluent COD(t) 171-199mg/l) and BW (effluent COD(t) 92-100mg/l). Also, little dissolved COD (COD(dis)) was left in the final effluents (BW 48-70mg/l; BWKW 110-113mg/l). Part of total nitrogen (N(tot)) was removed (BW 18% and BWKW 40%) and especially at 20 degrees C ammonification was ef…

Environmental EngineeringNitrogenmedia_common.quotation_subjectBioengineeringSeptic tankGarbageWaste Disposal FluidMethaneWater Purificationchemistry.chemical_compoundAnimal scienceAnaerobiosisWaste Management and DisposalEffluentmedia_commonTotal suspended solidsWaste managementSewageRenewable Energy Sustainability and the EnvironmentChemistryChemical oxygen demandTemperatureWaterGeneral MedicineHydrogen-Ion ConcentrationAnaerobic digestionFood wasteKineticsAnaerobic exerciseBioresource technology
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