Papers by Mochamad Septiono
Environmental Science & Technology
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MATEC Web of Conferences, 2018
Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Re... more Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Regency, Sumedang Regency, Bandung City and Cimahi City, are registered as PROPER industries. They must comply to indicators as set in the Minister of Environment and Forestry Decree No. 3 In 2014 concerning Industrial Performance Rank in Environmental Management, as a requirement to apply for PROPER. Wastewater treatment and management, referencing to Minister of Environment and Forestry Decree No. 5 In 2014 concerning Wastewater Effluent Standards, must be performed to be registered as PROPER industries. Conducting only physical-chemical parameter monitoring of wastewater is insufficient to determine the safety of wastewater discharged into the river, therefore additional toxicity tests involving bioindicator are required to determine acute toxicity characteristic of wastewater. The acute toxicity test quantifies LC50 value based on death response of bioindicators from certain dosage. Da...
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Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Re... more Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Regency, Sumedang Regency, Bandung City and Cimahi City, are registered as PROPER industries. They must comply to indicators as set in the Minister of Environment and Forestry Decree No. 3 In 2014 concerning Industrial Performance Rank in Environmental Management, as a requirement to apply for PROPER. Wastewater treatment and management, referencing to Minister of Environment and Forestry Decree No. 5 In 2014 concerning Wastewater Effluent Standards, must be performed to be registered as PROPER industries. Conducting only physical-chemical parameter monitoring of wastewater is insufficient to determine the safety of wastewater discharged into the river, therefore additional toxicity tests involving bioindicator are required to determine acute toxicity characteristic of wastewater. The acute toxicity test quantifies LC 50 value based on death response of bioindicators from certain dosage. Daphnia magna was used as bioindicator in the toxicity test and probit software for analysis. In 2015-2016, the number of industries that discharged wastewater exceeding the standard was found greater in non-PROPER industries than in PROPER industries. Based on the toxicity level, both PROPER and non-PROPER industries have toxic properties, however PROPER industries of 2015-2016 is more toxic with LC50 96 value reaching 2.79%.
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Wastewater and solid waste from both domestic and industry have been known to give burden on rive... more Wastewater and solid waste from both domestic and industry have been known to give burden on river water quality. Most of river water quality problem in Indonesia has start in the upper part of river due to anthropogenic activities, due to inappropriate land use management including the poor wastewater infrastructure. Base on Upper Citarum River Water pollution problem, it is interesting to study the other main river in Java Island. Bengawan Solo River and Brantas River were chosen as the sample in this study. Parameters assessed in this study are as follows: TSS, TDS, pH, DO, and hexavalent chromium. The status of river water quality are assess using STORET method. Based on (five) parameters, STORET value showed that in Brantas River, Pagerluyung monitoring point had the worst quality relatively compared to other monitoring point in Brantas River with exceeding copper, lead and tin compared to the stream standard in East Java Provincial Regulation No. 2 in 2008. Brantas River was categorized as lightly polluted river based on monitoring period 2011-2015 in 5 monitoring points, namely Pendem, Sengguruh, Kademangan, Meritjan and Kertosono.
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Java economic corridor, outlined in Masterplan of Acceleration and Expansion of Indonesia Economi... more Java economic corridor, outlined in Masterplan of Acceleration and Expansion of Indonesia Economic Development 2011-2025 (MP3EI), is aiming for Indonesian economic growth through industry development. Being implemented in action, impacts on water resources sustainability needs to be reviewed. Carrying capacity of water resources was reviewed by analyzing river water quality, regulatory policies and its implementation in Provincial/Regency/City level. Research method was conducted by collecting secondary data, industry amount analysis, and FGD with relevant institutions. This study selected three largest watersheds in Java island, namely Citarum, Bengawan Solo and Brantas. Data shows the dominating industry in Upper Citarum is 75% textile industry and the rest varied from electroplates, chemicals, and others in smaller percentage. Discharge of wastewater has exceeded 4 times to allowable discharge. Dominating industry around Bengawan Solo are textiles 42%, food and beverages 16% and others. Brantas River has variety of industries with uniform percentage. Results showed the policies, regulation and methods of monitoring in district and city level were still inadequate so that almost the entire receiving river quality is very low. Resource and capacity of Provincial and Regency/City Level EPA, as leading institution of river water quality management, still needs significant improvement managing water quality environment.
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Proceedings - The 5th Environmental Technology and Management Conference 2015
Heavy metal pollution in Citarum River has been known for years to correlate with the uncontrolle... more Heavy metal pollution in Citarum River has been known for years to correlate with the uncontrolled development in the upper part of the river. Previous studies show that the degradation of water quality in Upper Citarum is affected by the increasing area of agriculture fields in conservation zone, resulting in downstream erosion. The increasing number of industrial activities may also affect higher heavy metal contamination in several monitoring points. Regional and central government regulate the standard of heavy metal content in river water, which is used by regional environmental protection agency for water quality monitoring program. Heavy metal presence in sediment became a concern to environmental health, especially in areas where the sediment was used by local community. However, regulation for heavy metal content in sediment has not been available in Indonesia. In this study, heavy metal content distribution in water, sediment and fish (Liposarcus pardalis) were conducted by sampling in several monitoring points in Upper Citarum. Results of observation and interview about the utilization of water, sediment and fish were able to describe potential pathway exposure of heavy metal to human. Cadmium, chromium and copper in water, sediment and fish samples were analyzed using Flame-Atomic Absorption Spectrophotometer (Flame-AAS). Total chromium content in river water at Sapan and Cisirung sampling points were higher compared to other sampling points. The highest total chromium content of 103.925 mg/kg dry weight in fish was measured in Sapan, as well as higher cadmium and copper content in water compared to other sampling points. The specific potential exposure pathway of cadmium, chromium and copper to human were drafted based on interview to local community. Due to the fact that the regulation for heavy metal content in sediment is still not available in Indonesia, this study shows the importance of establishing regulation to protect the environment and public health.
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Books by Mochamad Septiono
Mercury has been recognised and used in Indonesia since the 90s. As the gold price increasing and... more Mercury has been recognised and used in Indonesia since the 90s. As the gold price increasing and decentralisation or local autonomous administration implemented in the early 2000, illegal gold mining activities also increased.
Until 2014, Indonesia still imports mercury from various countries. But since 2015, when the EU and the United States imposed a ban on mercury exports, the Ministry of Trade of the Republic of Indonesia issued Regulation of the Minister of Trade No. 75/M-DAG/PER/10/2014 which prohibits the import, trade and use of mercury in the mining sector. In 2016, Indonesia became one of the largest mercury producers and exporters in the world, exporting 635 tons of mercury to 13 countries.
Various studies have shown an increase in the activity of Small Scale Gold Mining or ASGM and mercury-induced pollution in several provinces in Indonesia. Kania Dewi (2012) identifies mercury emissions from the ASGM sector as the main source of mercury emissions (57.5%) in Indonesia. Globally, UNEP (2013) identifies the ASGM sector as a major contributor to global mercury emissions (37%).
This research was conducted in 2016 using literature study methodology, desk research, interviews, and field works. This study aims to present the current situation of mercury trade and supply in Indonesia, identifying knowledge gaps and providing recommendations for policymakers and stakeholders.
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Papers by Mochamad Septiono
Books by Mochamad Septiono
Until 2014, Indonesia still imports mercury from various countries. But since 2015, when the EU and the United States imposed a ban on mercury exports, the Ministry of Trade of the Republic of Indonesia issued Regulation of the Minister of Trade No. 75/M-DAG/PER/10/2014 which prohibits the import, trade and use of mercury in the mining sector. In 2016, Indonesia became one of the largest mercury producers and exporters in the world, exporting 635 tons of mercury to 13 countries.
Various studies have shown an increase in the activity of Small Scale Gold Mining or ASGM and mercury-induced pollution in several provinces in Indonesia. Kania Dewi (2012) identifies mercury emissions from the ASGM sector as the main source of mercury emissions (57.5%) in Indonesia. Globally, UNEP (2013) identifies the ASGM sector as a major contributor to global mercury emissions (37%).
This research was conducted in 2016 using literature study methodology, desk research, interviews, and field works. This study aims to present the current situation of mercury trade and supply in Indonesia, identifying knowledge gaps and providing recommendations for policymakers and stakeholders.
Until 2014, Indonesia still imports mercury from various countries. But since 2015, when the EU and the United States imposed a ban on mercury exports, the Ministry of Trade of the Republic of Indonesia issued Regulation of the Minister of Trade No. 75/M-DAG/PER/10/2014 which prohibits the import, trade and use of mercury in the mining sector. In 2016, Indonesia became one of the largest mercury producers and exporters in the world, exporting 635 tons of mercury to 13 countries.
Various studies have shown an increase in the activity of Small Scale Gold Mining or ASGM and mercury-induced pollution in several provinces in Indonesia. Kania Dewi (2012) identifies mercury emissions from the ASGM sector as the main source of mercury emissions (57.5%) in Indonesia. Globally, UNEP (2013) identifies the ASGM sector as a major contributor to global mercury emissions (37%).
This research was conducted in 2016 using literature study methodology, desk research, interviews, and field works. This study aims to present the current situation of mercury trade and supply in Indonesia, identifying knowledge gaps and providing recommendations for policymakers and stakeholders.