Revealing flow structure of air and rice husk in the acrylic suspension furnace: simulation study and cold test experiment

Steven, Soen; Restiawaty, Elvi; Pasymi, Pasymi; Bindar, Yazid

doi:10.1007/s43153-022-00274-y

Cited by 5 publications

(2 citation statements)

References 54 publications

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“…Gas emissions should be suppressed in number by creating near-perfect incineration conditions 49) . It can be realized by adding the amount of air to create a turbulence effect (mixing waste and air) and improve the incineration system [50][51][52][53] . The quencher decreases the flue gas temperature by transferring sensible heat to the water until it evaporates.…”

Section: Flue Gas Characterization Resultsmentioning

confidence: 99%

Municipal Solid Waste (MSW) Reduction through Incineration for Electricity Purposes and Its Environmental Performance: A Case Study in Bantargebang, West Java, Indonesia

Febijanto,

Steven,

Nadirah

et al. 2024

Evergreen

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The incineration of municipal solid waste (MSW) effectively reduces waste and has a side product, such as electricity. The waste-to-energy (WTE) power plant in Bantargebang is the first national pilot plant facility in Indonesia using moving grate incinerator (MGI) technology, with a 100 tons/day design capacity and a maximum design of electricity power output of 750 kW. The main challenge of WTE in Indonesia is high moisture content (MC) and unsorted waste. Hence, it is imperative to include the pre-treatment facility through waste drying and sorting. In this work, over 241 working days from January to December 2022, approximately 15,451.35 tons of MSW (averaging 70.55 tons/day) have been incinerated at an average temperature of 613.8 o C. Waste pretreatment alleviates waste MC from 20.13% to 8.59%. This process achieves a significant waste mass reduction of 81.52-96.50%. In addition, the system generates superheated steam at maximum values of 5000 kg/h, 340 o C, and 38-39 barA. The total electrical energy generated (956.04 MWh) is used to supply the electrical energy demand of the internal plant operation (1368.78 MWh). Moreover, the wastewater and flue gas in this WTE have successfully been processed by the pollution control systems to meet national standards. The fly and bottom ash from MSW incineration have proven harmless and suitable for construction material or cement admixture. This work conclusively shows that WTE Bantargebang provides positive implementation in almost all aspects, encompasses a significant amount of waste reduction, satisfying incineration performance, a significant amount of electricity generated, and the environmental performance does not harm the surroundings. Related to the performance deficiencies found is expected can be a valuable input for WTE development in Indonesia.

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Section: Flue Gas Characterization Resultsmentioning

confidence: 99%

Municipal Solid Waste (MSW) Reduction through Incineration for Electricity Purposes and Its Environmental Performance: A Case Study in Bantargebang, West Java, Indonesia

Febijanto,

Steven,

Nadirah

et al. 2024

Evergreen

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“…The CO2 emissions have led to global warming and climate change [1][2][3][4][5][6]. As much as 87% of all human-produced CO2 emissions derive from coal (43%), natural gas (36%), and fuel oil (27%).…”

Section: Introductionmentioning

confidence: 99%

Short Perspective on Membrane Integration in Microalgae Bioreactor for CO2 Capture

Steven¹

2023

Advances in Biological Sciences Research

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The global warming issue has reached an alarming level due to the continuous increase of CO2 and other greenhouse gas emissions. They are released into the atmosphere due to anthropogenic activities and contributions from many industries that employ coal, fuel oil, and natural gas. To achieve environmentally friendly and sustainable conditions, CO2 capture is important. This article starts by discussing the comparison of several methods in CO2 capture, continues with the performance of CO2 capture in microalgae bioreactor (photo-bioreactor), and closed with the prospect of membrane integration in photo-bioreactor. There are physical, chemical, and biological methods for capturing CO2. Physical method leads to expensive processes and chemical method leads to producing chemical waste. Biological method using microalgae is considered attractive and several factors affected the capture process, i.e. temperature, pH, light intensity, microalgae strain, types of bioreactor, CO2 and toxic substances concentration (SO2 and NOx), and illumination cycle. This article discloses that airlift and flat panel photo-bioreactors are promising for CO2 capture because of their high volumetric productivity, high photosynthetic efficiency, high gas transfer, and uniform mixing. Furthermore, membrane integration in photo-bioreactors increases the capture efficiency as it can produce fine bubbles for better CO2 mass transfer into the medium. Therefore, microalgae cultivation combine with membrane process has a potential prospect for environmental remediation while producing valuable products from microalgae.

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Investigation of rice husk semi-continuous combustion in suspension furnace to produce amorphous silica in ash

Steven,

Pasymi,

Hernowo

et al. 2023

Biomass Conv. Bioref.

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Revealing flow structure of air and rice husk in the acrylic suspension furnace: simulation study and cold test experiment

Cited by 5 publications

References 54 publications

Municipal Solid Waste (MSW) Reduction through Incineration for Electricity Purposes and Its Environmental Performance: A Case Study in Bantargebang, West Java, Indonesia

Municipal Solid Waste (MSW) Reduction through Incineration for Electricity Purposes and Its Environmental Performance: A Case Study in Bantargebang, West Java, Indonesia

Short Perspective on Membrane Integration in Microalgae Bioreactor for CO2 Capture

Investigation of rice husk semi-continuous combustion in suspension furnace to produce amorphous silica in ash

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