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Bio-geochemical simulation for solute transport in Piyungan landfill, Yogyakarta Special Province, Indonesia Keophousone Phonhalath; Dwikorita Karnawati; Heru Hendrayana; Doni Prakasa Eka Putra; Kenji Jinno
Journal of Applied Geology Vol 3, No 1 (2011)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4270.715 KB) | DOI: 10.22146/jag.7159

Abstract

Piyungan Landfill is the largest in Bantul Regency. According to water quality sampling taken from a leachate pond, there are significant contaminant issues resulting from landfill leachate. The objectives of this research were achieved by applying a two-dimensional bacteria mediated reduction numerical model was applied. Method of characteristic was applied to solve the advection part of the solute transport equation. Three bacteria (X1, X2, and X3) groups were defined in the redox model. In the conceptual model, bacterial X1 utilizes oxygen under aerobic conditions and nitrate, NO-3 under aerobic conditions as electron acceptors. Consequently, under aerobic conditions bacteria X2, and X3 utilize MnO2, and Fe(OH)3 respectively as electron acceptors. In the redox model organic carbon which was defined as CH2O was considered as the electron donor for all bacteria mediated reduction reactions. The results of research are to improve the understanding of biogeochemical processes in aquifer.
Community Based Adaptation To Climate Change And Social Economic In Xe Champhone Wetland, Champhone District, Savannakhet Province siharath, Phoummixay; Somchay Vilaychaleun; Khampasith Thammathevo; Keophousone Phonhalath; Soulyphan Kannitha; Chankhachone Sonemanivong; Keoduangchai Keokhamphui; Phaiphana Siharath
Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID) Vol. 3 No. 02 (2024): Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID), July 2024
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/esaprom.v3i02.4408

Abstract

Climate change is key significant factor that impacts on multi-dimensions, which is relevant to social economic development, livelihood and environment, hence, Community Based Adaptation (CBA) to climate change is a mechanism of adapting based on the existing practices, knowledge, policy and experiences of the rice farmers to sustain their lives on changing climate, the objective of the study is to assess the social economic and find the practice management of rice farmers to adapt during flood and drought seasons. Hence, according to the research finds that, majority of the rice farmers are experienced and learnt from the previous effect and adjust themselves by using knowledge skills, experiences to build the resilience for their rice and crop planting in order to prevent and avoid the damages from climate change within the wetland. Besides that, the local communities still utilize the existing potential natural based adaptation to be flexible sustainably their agricultural activities and livelihood during rainy and dry season