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4th International Workshop on Decentralized
Domestic Wastewater Treatment in Asia===========================================================================

27-28 September 2016, Jakarta, Indonesia
Century Park Hotel
Organized by
Ministry of the Environment (MOE), Japan
Supported by
National Institute for Environmental Studies (NIES), Japan
Japan Sanitation Consortium (JSC), Japan
Johkasou System Association (JSA), Japan
SecretariatJapan Education Center of Environmental Sanitation, Japan
1. Objective
The objective of this workshop is to contribute to further development ofdecentralized domestic wastewater treatment and to achieve the SDGs in sanitation inparticipating countries, through sharing good experiences and building a network ofrelated personnel in Asia.
2. Sessions
In the 4th workshop, the following three sessions are prepared, andpolicy/regulations and good practices on decentralized wastewater treatment will beintroduced. Based on these presentations, participants will make discussion on common
concerns of how to promote the decentralized wastewater treatment in Asia.
Session 1 Framework of regulation, monitoring and management of decentralized
domestic wastewater treatment
It is necessary to establish a legal framework on operation/maintenance andinspection for decentralized wastewater treatment plants to keep them in normal
condition and being operated appropriately. In such framework, the responsibility towastewater treatment should be clarified, and the organization of regulator andinspector should be established. Based on the results of discussion on common
challenges derived from the presentations, key points for establishing the legal
framework will be summarized.
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In this session, presentations on regulations, framework of O/M and performance
testing of Japanese johkasou system, regulations and monitoring issues in Indonesia
and policy and activities in decentralized wastewater treatment in Vietnam will beconducted.
≪Keyword: regulation, water quality, monitoring, O/M, training≫
Session 2 Challenges and good practices of decentralized domestic wastewater
treatment
Decentralized wastewater treatment is promoting and lots of good practices
available in Asian countries are being carried out. These good practices should beshared among participating countries and should be applied to promotion ofdecentralized wastewater treatment.
In this session, presentations on challenges and/or good practice of decentralized
wastewater treatment in Indonesia, China and other Asian countries will be conducted.
≪Keyword: good practice, on-site wastewater treatment, treatment performance≫
Session 3 Good practices in septage management in participating countries
Regular desludging is absolutely imperative for decentralized wastewater treatment
plants to keep the treatment performance. It is important to treat collected septage too.
Sharing the information of septage management among participating countries andimprovement of policy on septage management in the countries must be made.
In this session, presentations on framework of collecting/treatment of septage andgood practice of septage management in Japan, policy and experiences of septage
management in India, Thailand and Malaysia will be conducted.
≪Keyword: desludging, septage management, septage treatment≫

3. Agenda
Date: 27-28 September, 2016
Venue: Century Park Hotel, Jakarta, Indonesia(Jalan Pintu Satu Senayan , 10270 Jakarta - Indonesia)
Member: about 50 participants (including 6 speakers from other Asian countries,
about 30 participants from Indonesia and about 10 participants fromJapan)

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