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Papers by I Made Wahyu Wijaya

Research paper thumbnail of Perencanaan Pengelolaan Sampah DI Obyek Wisata Eks Pelabuhan Buleleng, Kabupaten Buleleng

Rata-rata jumlah wisatawan di obyek wisata ini pada bulan Januari-Maret 2014 adalah 288 orang, 15... more Rata-rata jumlah wisatawan di obyek wisata ini pada bulan Januari-Maret 2014 adalah 288 orang, 15% di antaranya wisatawan asing. Beberapa fasilitas penunjang berupa warung, restoran apung, balai serta wahana permainan anakanak telah dibangun. Pihak pengelola obyek wisata telah menyediakan fasilitas pengelolaan sampah, namun masih belum memadai. Terlebih-lebih daerah wisata ini mendapat sampah kiriman dari laut dan Sungai Buleleng. Tujuan perencanaan ini adalah menentukan timbulan dan komposisi sampah di obyek wisata Eks Pelabuhan Buleleng, merencanakan sistem pengelolaan sampah, serta menghitung biaya modal, operasional dan pemeliharaannya. Timbulan dan komposisi sampah dari fasilitas penunjang diukur dengan mengacu pada SNI 19-3964-1994. Pengambilan sampah di pesisir dan sungai dilakukan dengan metode transek. Perencanaan sistem pengelolaan sampah yang meliputi pewadahan, pengumpulan, dan TPS mengacu pada SNI 19-2454-2002, Buku Materi Bidang Sampah I 2013 Ditjen Cipta Karya Kemente...

Research paper thumbnail of Provision of healthy toilet for low income community based on community empowerment in Kelurahan Kebonsari, Surabaya City, towards Indonesia open defecation free (ODF) in 2019

Research paper thumbnail of Potential of Energy Municipal Solid Waste (MSW) to Become Refuse Derived Fuel (RDF) in Bali Province, Indonesia

Jurnal Bahan Alam Terbarukan, 2021

The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of t... more The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of the updates on sustainable waste processing is the RDF treatment plant processing. Before carrying out the processing, MSW characterization is needed because each region has a diverse composition. The processing of MSW into RDF provides benefits for achieving MSW reduction targets, renewable energy use, and the reduction of greenhouse gas (GHG) emissions. For this reason, this study was conducted to determine the potential of MSW in Bali as an alternative to renewable fuel and its potential to reduce GHG. MSW's potential calorific value as a raw material for RDF in Bali can reach 9.58 - 17.71 MJ/kg. The implementation of processing waste into RDF in pellets has shown a calorific value of ± 3904 - 4945 kkcal/kg. Implementing MSW processing into RDF in Bali can reduce GHG by 178 - 330 times compared to open dumping.

Research paper thumbnail of Life Cycle Assessment of Solid Waste Generation During and Before Pandemic of COVID-19 in Bali Province

Journal of Sustainability Science and Management, 2020

The outbreak of coronavirus diseases (COVID-19) receives much attention globally. On January 30, ... more The outbreak of coronavirus diseases (COVID-19) receives much attention globally. On January 30, 2020, WHO has stated it was a global health emergency. The Indonesian Government requiring that all work from home and restricting access to activities outside the home. In the Bali Province, it has had a positive impact on the environment, especially for the amount of waste generation and emissions. The main objectives of this study were to analyse solid waste generation and to provide a review of issues in environmental impact during and before the pandemic of COVID-19 in Bali Province. LCA technique has been used extensively to evaluate the environmental performance of several municipal solid waste management technologies. An LCA study consists of four stages, such as goal and scope, life cycle inventory, life cycle impact analysis, and interpretation. The degraded organic carbon (DOC) value before the pandemic was 0.121 while after the pandemic the DOC reduced to 0.058. Moreover, methane and carbon dioxide production from waste generation per day was counted in this study. The total global warming potential from waste generation has been drastically reduced from 1,859.6 kg CO 2eq /day to 420.8 kg CO 2eq /day.

Research paper thumbnail of Domestic Wastewater in Indonesia: Challenge in the Future Related to Nitrogen Content

International Journal of GEOMATE, 2018

The option of reusing treated wastewater is becoming necessary for environment sustainability app... more The option of reusing treated wastewater is becoming necessary for environment sustainability approach. In fact, wastewater effluent discharge regulations have become stricter leading to a better water quality. Municipal activities, agriculture, and rapid urbanization led to increased nitrogen and phosphorus discharge to the water system. More often, the effluents from municipal wastewater treatment plant failed to meet the national standard for effluent quality. Excess nutrients, mostly N and P is the main cause of eutrophication the which results in oxygen depletion, biodiversity reduction, fish kills, odor, and increased toxicity. Biological nutrient removal technologies are preferred and widely used to remove nitrogen and phosphorus from domestic wastewater and protect water quality. Chemical compositions in wastewater are highly diverse substances from simple compounds to complex polymers. Some wastewater samples were analyzed in this research. Conventional technology still retains the basic principle of complete nitrogen cycle through nitrification and denitrification. Anammox is a sustainable and cost-effective alternative to the basic method of nitrogen removal. Anammox has been identified as a new biotechnology for nitrogen reduction from wastewater. Compared to the common process of nitrogen removal, anammox can reduce 64% off aeration, 100% of an exogenous electron donor, and sludge production by 80-90%. Some benefits from anammox include high nitrogen removal rate, lower operational cost, and small space requirements. Anaerobic baffled reactor (ABR) in Indonesia has been used commonly as communal wastewater treatment. Promoting anammox process in ABR potentially become an improvement for ABR in removing nitrogen better. This combination process still outlined for further research.

Research paper thumbnail of Development of anaerobic ammonium oxidation (anammox) for biological nitrogen removal in domestic wastewater treatment (Case study: Surabaya City, Indonesia)

AIP Conference Proceedings, 2017

Research paper thumbnail of The Strategies to Reduce the Spread of Nitrogen from Domestic Wastewater Treatment to the Streams in Surabaya City, Indonesia

International Journal of GEOMATE, 2019

Wastewater is belong to one of the parts of sanitation objects. According to the studies, there i... more Wastewater is belong to one of the parts of sanitation objects. According to the studies, there is 7,98% of area was categorised as very high risk sanitation while 12,88% got high risk sanitation. There is still 1 % of the society practicing open defecation in the sewerage, and 0,27% to the land. As the part of sanitation, provision of wastewater treatment is one of the efforts to reach the universal access of 100-0-100, which means achieving 100% served by proper sanitation. The pollution in the mainstream is caused by the untreated domestic wastewater, which is directly discharged to the river. The wastewater services in Surabaya City by 2015 is 97,53% with 43 domestic wastewater installed. Surabaya City has some rules to manage and control the domestic wastewater. The effluent of domestic wastewater treatment is controlled by the rules with some parameters. The nitrogen content of the effluent in some domestic wastewater treatment was analysed according to APHA. The strategies were described according to the local sanitation strategic in Surabaya City. This study shown that there were three out of seven units of ABR have higher concentration of ammonium comparing with the national standard. Surabaya City has Sanitation Development Plan 2017, which is clearly describing the strategies plan for the domestic wastewater development 2017-2021. These strategies including the implement of related local rules, increase of wastewater services, increase of knowledge, participation and awareness of the society, increase the provision and access of sanitation supporting facilities, and optimization of sludge treatment in Surabaya City.

Research paper thumbnail of Recycling Temple Waste into Organic Incense as Temple Environment Preservation in Bali Island

Jurnal Ilmu Lingkungan, 2021

Kegiatan upacara di tempat suci pura di Pulau Bali rata-rata menghasilkan sampah sekitar 2000 L/h... more Kegiatan upacara di tempat suci pura di Pulau Bali rata-rata menghasilkan sampah sekitar 2000 L/hari. Sebagai bagian yang sangat penting dari budaya Bali, sesajen yang terdiri dari bunga, daun, buah-buahan dan bambu disajikan di setiap upacara keagamaan. Pembuangan sampah pura yang tidak tepat berpotensi menimbulkan gangguan pada kehidupan manusia dan lingkungan, seperti air dan sanitasi, penumpukan sampah, peningkatan tingkat pencemaran, dan kesehatan manusia. Penelitian ini bertujuan untuk mendaur ulang sampah pura, khususnya sisa bunga menjadi dupa organik serta mengkaji alternatif lain dalam daur ulang sampah pura. Daur ulang sisa bunga menjadi dupa organik dilakukan dengan menggunakan tiga bahan campuran. Kajian literatur digunakan untuk menambah informasi alternatif daur ulang sampah pura dari penelitian sebelumnya. Hasil eksperimen menunjukan bahwa sampah sisa bunga dapat didaur ulang menjadi dupa organik. Rasio campuran 1:2 untuk sisa bunga dan bubuk esensial memberikan hasi...

Research paper thumbnail of Perencanaan Pengelolaan Sampah DI Obyek Wisata Eks Pelabuhan Buleleng, Kabupaten Buleleng

Rata-rata jumlah wisatawan di obyek wisata ini pada bulan Januari-Maret 2014 adalah 288 orang, 15... more Rata-rata jumlah wisatawan di obyek wisata ini pada bulan Januari-Maret 2014 adalah 288 orang, 15% di antaranya wisatawan asing. Beberapa fasilitas penunjang berupa warung, restoran apung, balai serta wahana permainan anakanak telah dibangun. Pihak pengelola obyek wisata telah menyediakan fasilitas pengelolaan sampah, namun masih belum memadai. Terlebih-lebih daerah wisata ini mendapat sampah kiriman dari laut dan Sungai Buleleng. Tujuan perencanaan ini adalah menentukan timbulan dan komposisi sampah di obyek wisata Eks Pelabuhan Buleleng, merencanakan sistem pengelolaan sampah, serta menghitung biaya modal, operasional dan pemeliharaannya. Timbulan dan komposisi sampah dari fasilitas penunjang diukur dengan mengacu pada SNI 19-3964-1994. Pengambilan sampah di pesisir dan sungai dilakukan dengan metode transek. Perencanaan sistem pengelolaan sampah yang meliputi pewadahan, pengumpulan, dan TPS mengacu pada SNI 19-2454-2002, Buku Materi Bidang Sampah I 2013 Ditjen Cipta Karya Kemente...

Research paper thumbnail of Provision of healthy toilet for low income community based on community empowerment in Kelurahan Kebonsari, Surabaya City, towards Indonesia open defecation free (ODF) in 2019

Research paper thumbnail of Potential of Energy Municipal Solid Waste (MSW) to Become Refuse Derived Fuel (RDF) in Bali Province, Indonesia

Jurnal Bahan Alam Terbarukan, 2021

The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of t... more The generation of municipal solid waste (MSW) in Bali has various environmental impacts. One of the updates on sustainable waste processing is the RDF treatment plant processing. Before carrying out the processing, MSW characterization is needed because each region has a diverse composition. The processing of MSW into RDF provides benefits for achieving MSW reduction targets, renewable energy use, and the reduction of greenhouse gas (GHG) emissions. For this reason, this study was conducted to determine the potential of MSW in Bali as an alternative to renewable fuel and its potential to reduce GHG. MSW's potential calorific value as a raw material for RDF in Bali can reach 9.58 - 17.71 MJ/kg. The implementation of processing waste into RDF in pellets has shown a calorific value of ± 3904 - 4945 kkcal/kg. Implementing MSW processing into RDF in Bali can reduce GHG by 178 - 330 times compared to open dumping.

Research paper thumbnail of Life Cycle Assessment of Solid Waste Generation During and Before Pandemic of COVID-19 in Bali Province

Journal of Sustainability Science and Management, 2020

The outbreak of coronavirus diseases (COVID-19) receives much attention globally. On January 30, ... more The outbreak of coronavirus diseases (COVID-19) receives much attention globally. On January 30, 2020, WHO has stated it was a global health emergency. The Indonesian Government requiring that all work from home and restricting access to activities outside the home. In the Bali Province, it has had a positive impact on the environment, especially for the amount of waste generation and emissions. The main objectives of this study were to analyse solid waste generation and to provide a review of issues in environmental impact during and before the pandemic of COVID-19 in Bali Province. LCA technique has been used extensively to evaluate the environmental performance of several municipal solid waste management technologies. An LCA study consists of four stages, such as goal and scope, life cycle inventory, life cycle impact analysis, and interpretation. The degraded organic carbon (DOC) value before the pandemic was 0.121 while after the pandemic the DOC reduced to 0.058. Moreover, methane and carbon dioxide production from waste generation per day was counted in this study. The total global warming potential from waste generation has been drastically reduced from 1,859.6 kg CO 2eq /day to 420.8 kg CO 2eq /day.

Research paper thumbnail of Domestic Wastewater in Indonesia: Challenge in the Future Related to Nitrogen Content

International Journal of GEOMATE, 2018

The option of reusing treated wastewater is becoming necessary for environment sustainability app... more The option of reusing treated wastewater is becoming necessary for environment sustainability approach. In fact, wastewater effluent discharge regulations have become stricter leading to a better water quality. Municipal activities, agriculture, and rapid urbanization led to increased nitrogen and phosphorus discharge to the water system. More often, the effluents from municipal wastewater treatment plant failed to meet the national standard for effluent quality. Excess nutrients, mostly N and P is the main cause of eutrophication the which results in oxygen depletion, biodiversity reduction, fish kills, odor, and increased toxicity. Biological nutrient removal technologies are preferred and widely used to remove nitrogen and phosphorus from domestic wastewater and protect water quality. Chemical compositions in wastewater are highly diverse substances from simple compounds to complex polymers. Some wastewater samples were analyzed in this research. Conventional technology still retains the basic principle of complete nitrogen cycle through nitrification and denitrification. Anammox is a sustainable and cost-effective alternative to the basic method of nitrogen removal. Anammox has been identified as a new biotechnology for nitrogen reduction from wastewater. Compared to the common process of nitrogen removal, anammox can reduce 64% off aeration, 100% of an exogenous electron donor, and sludge production by 80-90%. Some benefits from anammox include high nitrogen removal rate, lower operational cost, and small space requirements. Anaerobic baffled reactor (ABR) in Indonesia has been used commonly as communal wastewater treatment. Promoting anammox process in ABR potentially become an improvement for ABR in removing nitrogen better. This combination process still outlined for further research.

Research paper thumbnail of Development of anaerobic ammonium oxidation (anammox) for biological nitrogen removal in domestic wastewater treatment (Case study: Surabaya City, Indonesia)

AIP Conference Proceedings, 2017

Research paper thumbnail of The Strategies to Reduce the Spread of Nitrogen from Domestic Wastewater Treatment to the Streams in Surabaya City, Indonesia

International Journal of GEOMATE, 2019

Wastewater is belong to one of the parts of sanitation objects. According to the studies, there i... more Wastewater is belong to one of the parts of sanitation objects. According to the studies, there is 7,98% of area was categorised as very high risk sanitation while 12,88% got high risk sanitation. There is still 1 % of the society practicing open defecation in the sewerage, and 0,27% to the land. As the part of sanitation, provision of wastewater treatment is one of the efforts to reach the universal access of 100-0-100, which means achieving 100% served by proper sanitation. The pollution in the mainstream is caused by the untreated domestic wastewater, which is directly discharged to the river. The wastewater services in Surabaya City by 2015 is 97,53% with 43 domestic wastewater installed. Surabaya City has some rules to manage and control the domestic wastewater. The effluent of domestic wastewater treatment is controlled by the rules with some parameters. The nitrogen content of the effluent in some domestic wastewater treatment was analysed according to APHA. The strategies were described according to the local sanitation strategic in Surabaya City. This study shown that there were three out of seven units of ABR have higher concentration of ammonium comparing with the national standard. Surabaya City has Sanitation Development Plan 2017, which is clearly describing the strategies plan for the domestic wastewater development 2017-2021. These strategies including the implement of related local rules, increase of wastewater services, increase of knowledge, participation and awareness of the society, increase the provision and access of sanitation supporting facilities, and optimization of sludge treatment in Surabaya City.

Research paper thumbnail of Recycling Temple Waste into Organic Incense as Temple Environment Preservation in Bali Island

Jurnal Ilmu Lingkungan, 2021

Kegiatan upacara di tempat suci pura di Pulau Bali rata-rata menghasilkan sampah sekitar 2000 L/h... more Kegiatan upacara di tempat suci pura di Pulau Bali rata-rata menghasilkan sampah sekitar 2000 L/hari. Sebagai bagian yang sangat penting dari budaya Bali, sesajen yang terdiri dari bunga, daun, buah-buahan dan bambu disajikan di setiap upacara keagamaan. Pembuangan sampah pura yang tidak tepat berpotensi menimbulkan gangguan pada kehidupan manusia dan lingkungan, seperti air dan sanitasi, penumpukan sampah, peningkatan tingkat pencemaran, dan kesehatan manusia. Penelitian ini bertujuan untuk mendaur ulang sampah pura, khususnya sisa bunga menjadi dupa organik serta mengkaji alternatif lain dalam daur ulang sampah pura. Daur ulang sisa bunga menjadi dupa organik dilakukan dengan menggunakan tiga bahan campuran. Kajian literatur digunakan untuk menambah informasi alternatif daur ulang sampah pura dari penelitian sebelumnya. Hasil eksperimen menunjukan bahwa sampah sisa bunga dapat didaur ulang menjadi dupa organik. Rasio campuran 1:2 untuk sisa bunga dan bubuk esensial memberikan hasi...