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Transfer Station - Underground Holding Tank

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<!{|style="float: left;"|{{Language-box|english_link=Transfer Station - table at top of page with logo, picture, Application level, Management level, and input-output tables -->Underground Holding Tank |french_link=Station_de_transfert_avec_réservoir_enterré|spanish_link=Estacion_de_Transferencia_(Tanque_de_Retencion_Subterraneo)|hindi_link=coming soon|malayalam_link=coming soon|tamil_link=coming soon | korean_link=coming soon | chinese_link=Coming soon | indonesian_link=Coming soon | japanese_link=Coming soon}}|}{|width="100%"|style="width:50%;"|{{santablesantable_new|
sys1=[[Single Pit System |1]]|
sys2=[[Blackwater Treatment System with Infiltration|56]]|sys3=[[Blackwater Treatment System with SewerageEffluent Transport|67]]|
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pic=Transfer_station_underground_holding_tank.png|
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ManShared=X|
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Input1=Faecal Sludge|Input2= |Input3= | Input4= |Input5=|Output1= Faecal Sludge | Output2= | Output3= | Output4= | Output5=
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'''Sometimes termed Underground Holding Tanks, Transfer Stations stations or underground holding tanks act as intermediate dumping points for faecal sludge when it cannot be easily transported to a (Semi-) Centralized Treatment facility. A vacuum truck must is required to empty Transfer Stations transfer stations when they are full.'''
Manual, <br>Operators of Human-Powered or small -scale sludge emptiers who use the MAPET or the [[Human-Powered Motorized Emptying and Transport|GulperMotorized Sludge Emptying Equipment]], for example, dump (see C.2 and C.3) discharge the sludge in at a local transfer station rather than either a) illegally dumping it illegally or b) trying travelling to discharge it at a remote treatment or disposal site. When the transfer station is full, a vacuum truck empties the contents and takes the sludge to a suitable treatment facility. Municipalities or sewerage authorities may charge for permits to dump at the transfer station to travel offset the costs of operating and maintaining the facility. In urban settings, transfer stations have to be carefully located, otherwise odours could become a distant collection pointnuisance, especially, if they are not well maintained.
When the Transfer Station is full===Design Considerations=== A transfer station consists of a parking place for vacuum trucks or sludge carts, a vacuum truck empties the contents connection point for discharge hoses, and takes a storage tank. The dumping point should be built low enough to minimize spills when labourers manually empty their sludge carts. Additionally, the sludge transfer station should include a vent, a trash screen to remove large debris (garbage) and a suitable treatment washing facilityfor vehicles. If the municipality The holding tank must be well constructed to prevent leaching and/or sewerage authority is operating the Transfer Station they may charge for permits to dump in the Transfer Station to offset the cost of maintaining the facilitysurface water infiltration.
The Transfer A variation is the [[Sewer Discharge Station consists of | sewer discharge station (SDS)]], which is like a transfer station, but is directly connected to a parking place for [[Conventional Gravity Sewer | conventional gravity sewer]] main. Sludge emptied into the vacuum truck SDS is released into the sewer main either directly or sludge cartat timed intervals (e.g., a connection point for by pumping) to optimize the performance of the sewer and of the discharge hosewastewater treatment plant, and a storage tank/or reduce peak loads. The dumping point at the Transfer Station should stations can be built low enough equipped with digital data recording devices to minimize spills when labourers are manually emptying their sludge cartstrack quantity, input type and origin, as well as collect data about the individuals who dump there. AdditionallyIn this way, the Transfer Station should include a vent, a trash screen operator can collect detailed information and more accurately plan and adapt to remove large debris (garbage) and a washing facility for vehiclesdiffering loads.
A variation is the Sewer Discharge Station (SDS), which is like a Transfer station, but is directly connected to a Conventional Gravity Sewer main (The system for more information, refer to [[Sewer Discharge Station|Sewer Discharge Stations]]). Sludge emptied into the SDS is released either directly issuing permits or at timed intervals into charging access fees must be carefully designed so that those who most need the sewer main service are not excluded because of high costs, while still generating enough income to optimize the performance of the sewer sustainablyoperate and maintain the wastewater treatment plant, and/or reduce peak loadstransfer stations.
<br>{{procontable | pro=- Reduces Makes sludge transport distance and may encourage to the treatment plant more communityefficient, especially where small-level emptying solutions. scale service providerswith slow vehicles are involved <br> - May reduce the illegal dumping of faecal sludge. <br> - Moderate capital and operating costs; Costs can be offset with access permits. <br> - Potential for local job creation and income generation. | con=- Requires expert design and construction supervision. <br> - Sludge requires secondary treatment and/or appropriate discharge.Can lead to odours if not properly maintained
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===Appropriateness===
Transfer stations are appropriate for dense, urban areas where there are no alternative discharge points for faecal sludge. Establishing multiple transfer stations may help to reduce the incidence of illegal sludge dumping and promote the emptying market. Transfer stations are especially adequate where small-scale
sludge emptying takes place. In big cities, they can reduce the costs incurred by truck operators by decreasing transport distances and waiting times in traffic jams. Local service providers can discharge sludge at transfer stations during the day, while large trucks can empty the tanks and go to the treatment plant at night when traffic is light.
==Adequacy== Transfer Stations are especially appropriate for dense, urban areas where there is no alternative discharge point (e.g. faecal sludge thickening pond). Multiple Transfer Stations in a city may help to reduce the incidence of illegal sewage dumping. The quality and quantity of the faecal sludge will significantly affect the treatment technology that is subsequently required. Transfer stations are adequate when there are many locations where small-scale sludge emptying is practiced. The construction of a Transfer Station may also stimulate the independent-emptying market. The site for the Transfer Station should be located where they are easily accessible, conveniently locatedconvenient, and easy to use. The underground holding tank must be well constructed to prevent leaching and/or surface water infiltration. Depending on the their maintenance of the facility, odours can be unappealing could become a problem to local residents. However, the benefits gained fromthem compared to open-air illegal dumping would likely greatly offset the odour nuisanceany nuisances.
The system ===Health Aspects/Acceptance=== Transfer stations have the potential to significantly increase the health of a community by providing an inexpensive, local solution for issuing permits faecal sludge disposal. By providing a transfer station, independent or charging access fees must be carefully designed so that those who most need the small-scale service providers are not excluded because of high costsno longer forced to illegally dump sludge, while still generating enough income and homeowners are more motivated to empty their pits. When pits are regularly emptied and illegal dumping is minimized, the overall health of a community can be significantly improved. The location must be sustainable carefully chosen to maximize efficiency and well-maintainedminimize odours and problems to nearby residents.
==Health Aspects/Acceptance=Operation & Maintenance=== Transfer Stations have the potential Screens must be frequently cleaned to significantly increase the health of ensure a community by providing an inexpensive, local solution to faecal sludge constant flow and septage disposalprevent back-ups. By providing a Transfer StationSand, independent or small-scale emptiers are no longer forced to dump grit and consolidated sludge illegally; homeowners are more motivated to have their pits emptiedmust also be periodically removed from the holding tank. Transfer Stations can There should be a low-costwell organized system to empty the transfer station; if the holding tank fills up and overflows, effective Conveyance technology for faecal sludge. When pits are emptied regularly and illegal dumping it is minimized, the overall health of a community can be improved significantlyno better than an overflowing pit. The location must pad and loading area should be carefully chosen regularly cleaned to maximize efficiencyminimize odours, while minimizing odours flies and disturbances to nearby residentsother vectors from becoming nuisances==Upgrading==
===Upgrading===
Transfer stations are relatively common in North America. There, they are equipped with digital data recording devices to track quantities, input types and origin, as well as collect data from the individuals who dump there. In this way, the facilitators can collect detailed information and more accurately plan and adapt to the changing loads.
==Maintenance=References=== Racks * African Development Fund (screens2005) must be cleaned frequently to ensure a constant flow and prevent backups. Sand [https://www.afdb.org/fileadmin/uploads/afdb/Documents/Project-and grit must also be periodically removed from the holding tank. There should be a well-organized system for emptying the transferOperations/Ghana_-_Accra_Sewerage_Improvement_Project_ASIP_-station; if the holding tank fills up _Appraisal_Report.pdf Accra Sewerage Improvement Project (ASIP). Appraisal Report]. Infrastructure Department Central and overflows it is no better than an overflowing pitWest Regions. The pad and loading area should be cleaned regularly to minimize odoursAbidjan, flies and other vectors from becoming a nuisanceCI.  
==References==* Boot, N. L. and Scott, R. E. (2008). [https://repository.lboro.ac.uk/articles/journal_contribution/Faecal_sludge_in_Accra_Ghana_problems_of_urban_provision/9439199/ Faecal Sludge in Accra, Ghana: Problems of Urban Provision]. Proceedings: Sanitation Challenge: New Sanitation Concepts and Models of Governance. Wageningen, NL.
* Elizabeth Tilley etChowdhry, S. and Koné, D.al (20082012). [httphttps://www.eawagsusana.chorg/organisationen/abteilungenknowledge-hub/sandec/publikationenresources-and-publications/publications_sesplibrary/downloads_sespdetails/compendium_high.pdf Compendium 1662 Business Analysis of Sanitation Systems and Technologies] ([httpFecal Sludge Management://www.eawag.ch/organisation/abteilungen/sandec/publikationen/publications_sesp/downloads_sesp/compendium_low.pdf low res version]). Department of Water Emptying and Sanitation Transportation Services in Development Countries ([http://www.sandec.ch/ SandecAfrica and Asia]) at the Swiss Federal Institute of Aquatic Science and Technology (Eawag). (Provides a full overview of sanitation systemsBill & Melinda Gates Foundation, Seattle, US.)
* African Development Fund (2005)Strande, L. Accra sewerage improvement project- appraisal report, Ronteltap, M. Infrastructure Department Central and West RegionsBrdjanovic, D. (Eds.) (2014). Available: http[https://www.afdbsusana.org/en/knowledge-hub/resources-and-publications/library/details/3591 Faecal Sludge Management. Systems Approach for Implementation and Operation]. IWA Publishing, London, UK.
* Boot, NLDU. and Scott, RDS. EPA (20081994). Faecal Sludge in Accra[https://www.epa.gov/sites/production/files/2018-11/documents/guide-septage-treatment-disposal.pdf Guide to Septage Treatment and Disposal]. EPA/625/R-94/002. U.S. Environmental Protection Agency, Ghana: problems Office of urban provisionResearch and Development, OH, US. Proceedings:Available at: Sanitation Challenge[http: New Sanitation Concepts and Models of Governance//www.epa. Wageningen, The Netherlandsgov epa. gov]
* USEPA (1994). Guide to Septage Treatment and Disposal===Acknowledgements==={{: EPA/625/R-94/002. United States Environmental Protection Agency, Office of Research and Development, Cincinnati, Ohio, USA. Available: http://www.epa.govAcknowledgements Sanitation}}
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