Towards climate change sensitive WASH: Quantifying greenhouse gas emissions from septic tanks with a focus on Methane

目标：-评估和比较直接量化的温室气体排放量与估计值-确定与化粪池温室气体排放相关的一些驱动因素-通过提供化粪池具体指南，为当前政府间气候变化专门委员会关于家庭废水甲烷排放的指南做出贡献。提出减少化粪池甲烷排放的措施。概要：本项目旨在了解化粪池的实际温室气体排放量，以增加目前估计的价值。中低收入国家出现了现场废水处理数量不断增加的趋势（Koné和Strauss，2004年），因此，在这些国家开展研究并使各国意识到其对全球清单的温室气体贡献十分重要。有关实际温室气体排放的信息可用于指导化粪池的未来发展和设计缓解途径。研究将在中低收入国家（城市地区）进行12至18个月，在同一地理位置有几个化粪池。将使用能够检测CO2、N2 O和CH 4排放量的便携式气体分析仪。该研究将有助于增加当前温室气体排放量估计值，以期设计有关化粪池甲烷排放的缓解策略。该研究符合EPSRC的几个主题，如全球不确定性，因为目前缺乏准确的温室气体排放清单，在某些部门，如卫生和工程，由于该项目试图通过在卫生部门的源头缓解来对抗全球变暖。

Objectives:-To assess and compare directly quantified GHG emissions against estimates -To identify some of the drivers linked to GHG emissions from septic tanks-To contribute to the current Intergovernmental Panel on Climate Change guidelines in methane emissions from domestic wastewater by providing septic tank specific guidelines.-To propose measures for reducing methane emissions from septic tanks.Summary:The project seeks to understand the actual quantities of GHG emissions from septic tanks to add value to the current estimates. Low-middle income countries have seen a trend of growing numbers of onsite wastewater treatment (Koné and Strauss, 2004), therefore it is important to conduct research in these countries and make countries aware of their GHG contributions to global inventories. Information about the actual GHG emissions can be used to guide future growth of septic tanks and design mitigation pathways.The research is to be conducted over 12 to 18 months in a low-middle income country (urban area) with several septic tanks in the same geographical location. A portable gas analyser capable of detecting CO2, N2O and CH4 emissions will be used. The research will help to add value to current GHG emissions estimates with a view to designing mitigation strategies regarding methane emissions from septic tanksThe research fits under several EPSRC's themes such as Global uncertainties due to the current lack of accurate GHG emissions inventories in some sectors such as sanitation, and Engineering due to the project trying to fight global warming by source mitigation in the sanitation sector.