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VALUE INCREASING OF REJECT COAL WITH BIOMASS ADDING AS BIO-COAL BRIQUETTE Dyah Marganingrum; Lenny Marilyn Estiaty
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Aim: This paper aims to explain the added value increasing method of reject coal which has not utilized by the company. Methodology and Results: The method to increase added value in this study used the agglomeration process of briquettes form that changing composition by adding biomass. The biomass functions to minimize bottom ash produced from burning briquettes so that the briquettes burn entirely. Stages processes in this study consist of characterization, briquetting, physical test, and chemical test. Based on the analysis, reject coal still has a high calorific value of 5,929 cal/gr. Shapes and sizes that were not following needs of coal market or consumer due to reject coal to be a waste. Briquettes have been successfully produced and meet specification requirements based on applicable regulations in Indonesia. Besides physical properties, the briquette meet density requirements which are greater than or equal to 1 gr/cm3 and shatter index value is less than 0.5%. The gas emission test shows below threshold, which is CO 0-30 ppm, H2S 0-3.6 ppm, and NOx is not detected. After evaluation, it showed that by adding 30% biomass, ignition time could be decreased and remaining unburned briquettes or bottom ash was reduced as much as 68.68%. Conclusion, significance and impact study: The bio-coal briquettes is a strategic solution to environmental problems and alternative energy sources that are environmentally friendly, because CO and H2S emissions are still below the threshold, even for NOx not detected. Making Bio-coal briquettes as a solution to the utilization of reject coal mining waste to be used as an alternative energy source has been successfully carried out.

TRENDS IN URBAN MORPHOLOGICAL DATA CAPTURE: A REVIEW OF THEORETICAL PERSPECTIVES ON UTILITY OF GEOSPATIAL TECHNOLOGY Maurice Onyango Oyugi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Aim: The purpose of this paper is to review the trends in the application of geospatial technology in urban morphology data capture and studies. Methodology and Results: This review was guided by critical thinking research approach, which involves analysis of relevant literature on a phenomenon to enable to draw conclusion(s) on whether a claim is true, sometimes true, partly true or false and using methods to applied in critical thinking include broad intellectual criteria such as clarity, credibility, accuracy, precision, relevance, depth, significance and fairness. The results show that increasing urbanization and sub-optimal locations of urban amenities and utilities has resulted in many cities facing environmental, land use and socio-economic challenges. This can be mitigated by the implementation of cost-effective urban development plans and policies together with an in-depth understanding of the interactions existing between urban natural and human systems, an undertaking reliably aided by geospatial technologies notably Remote Sensing, Geographical Information Systems, Global Positioning System and Photogrammetry. Conclusion, significance, and impact study: This paper is therefore anchored on an understanding of urban morphology, factors determining its changes over time and demonstrated achievements of the utility of geospatial technology in the study of the same with policy implications for the applications of the geospatial technology in urban studies.

SUSTAINABILITY WINDOW APPROACH FOR FISHERIES MANAGEMENT AT THE COASTAL AREA OF TERNATE ISLAND, NORTH MALUKU PROVINCE Faizal Rumagia; Mennofatria Boer; Rahmat Kurnia; Mohammad Mukhlis Kamal
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Aims: This study aims to assess the value sustainable development opportunity of the coral reef fisheries activities in Indonesia from the ecological, economic, and social aspect, with a case study of coral reef fisheries at the coastal area of Ternate Island, using the Sustainability Window (SuWi) approach. Methodology and Results: The data was collected from statistical data from relevant institutions and literature study, which consists of ecological, economic and social data, and analyzed using the Sustainability Window approach to determine the sustainability of the fisheries development. The result shows that the Sustainability Window of the coral reef fisheries in the research area tends to move towards sustainable development, where the national policy in catch fisheries management has an impact on the sustainable development and management of coral reef fisheries at the coastal area of Ternate Island. Conclusion, significance and impact study: The Sustainability Window of coral reef fisheries at the coastal area of Ternate Island tends to move towards sustainable processes, with the width of sustainability window that not too narrow to the coral reef fisheries activities at the provincial and national levels. This condition attaches strings to a precautionary approach in policy decision for the management process, and consideration to the effect that can result from the development policy, both at the provincial and national level. The use of Sustainability Windows approach can provide a new simple way for assessing whether the development has been towards a more sustainable direction or not.

REDUCTION OF AMMONIA EMISSIONS FROM THE COMPOSTING OF SLAUGHTERHOUSE SOLID WASTE USING ZEOLITE Rhenny Ratnawati; Sugito Sugito
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

The process of aerobic composting the slaughterhouse (SH) solid waste generate ammonia emissions. Aim: The objective of this research to study the ability of the adsorbent to use zeolite to reduce ammonia gas emissions during the composting process of SH solid waste. Methodology and Results: Reduction of ammonia emission is conducted during the aerobic composting process which is 50 days. The raw material composition of the composting process used was 100% rumen contents, 60% rumen contents: 40% straw, 50% rumen contents: 50% straw, and 40% rumen contents: 60% straw. Zeolite used in the form of granular size 100 mesh. The result of the research showed that the level of release of ammonia gas emissions during the composting process could be reduced by zeolite. Conclusion, significance, and impact study: The efficiency of reducing ammonia gas emissions using zeolite adsorbents in the composting process of SH solid waste ranges from 98.09 - 99.40% on average. Zeolite is an adsorbent that has high adsorption power because it has many pores and has a high ion exchange high capacity and serves as an absorbent cation that can cause environmental pollution.

THE POTENTIAL VARIABLES OF FIRST CHILD’S ENVIRONMENTAL QUALITY: A RETROSPECTIVE ANALYSIS FROM 1994 TO 2012 Rindang Ekawati; Laili Rahayuwati; Atlastieka Praptiwi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Aim: This study aimed at comparing predictor variables associated with the environmental quality of first child. Since the beginning of 1987, Indonesian National Family Planning Board (BKKBN) has been discouraging early first marriage (marrying before 20 for females and before 25 for males). In 2016, BKKBN recommended ideal ages of marriage for females and males as old as 21 and 25 respectively. Methodology and Results: This study was a retrospective analysis involving 5 groups of data reported within the period of 1994-1997 (n=34,225), 1997-2000 (n=34,227), 2001-2004 (n=33,088), 2005-2009 (n=40,701), and 2009-2012 (n=45,607). Data were collected from the Indonesian Demographic and Health Survey datasets (SDKI [Survei Demografi dan Kesehatan Indonesia]). Data were analyzed using chi-square tests. Results indicated several variables that significantly contributed to the first child’s environment quality: (1) residential area (p value<0.05); (2) mother’s educational background (p value<0.05); (3) mother’s exposure to information media (p value<0.05); (4) mother’s employment status (significance were only found in two groups of data: 1994-1997 and 1997-2000 with each p value<0.05); (5) father’s educational background (p value<0.05). Conclusion, significance and impact of study: In conclusion, there was an inconsistency with regard to strong and weak potential factors of first child’s environment quality within an eighteen-year period. It is recommended to reassess the predictors. It is also important to develop strategies to improve marriage quality and family formation.

THE IMPACT OF POOR SANITATION ON TOURISM DEVELOPMENT: A GLOBAL REVIEW Vita Elysia; Ake Wihadanto
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Aim: The objective of this paper is to review the impact of poor sanitation on global tourism development. Methodology and Results: The majority of the data for this study was sourced from World Development Indicators (WDI) dataset for more than 200 countries in 2014 from the World Bank. A regression analysis was applied to analyze the impact of access to improved sanitation on tourism development by using some indicators such as the number of tourist arrivals, the proportion of the population using improved sanitation facilities, and the proportion of the population using improved water facilities. The study found that the relationship between the proportion of the population using improved sanitation facilities and the number of tourist arrivals is significant. Poor sanitation has been shown to have huge negative impacts on public health and the economy. In terms of the economic impacts, the lack of access to improved sanitation causes economic losses related to the direct costs of treating sanitation-related diseases and the indirect cost of lost income through reduced productivity. Conclusion, significance, and impact study: Access to basic sanitation facilities is regarded as one of the aspects that should be considered to support the tourism industry, particularly in developing countries. This study suggests that providing sanitation is the best investment for promoting tourism. Decision-makers should act now, and in a concerted way, to provide adequate sanitation services and at the same time sustaining tourism growth as an essential aspect of a country’s economy.

NEW APPROACH TO FLARE GAS RECOVERY SYSTEM USING INTEGRATED RECIPROCATING COMPRESSORS FOR SOLVING ENVIRONMENTAL ISSUE BY MONETIZING GAS Ratnayu Sitaresmi; Tamado Sitorus; Hari Karyadi Oetomo; Doddy Abdassah; Luluan Almanna Lubis
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Flare gas is light hydrocarbon gas, by product of any petroleum industry activities, that is flared; and it could not pass into production facilities due its to low pressure. The gas flare volume frequently is significant, causing greenhouse gas emissions which gives serious environmental issue. Aims: The purpose of this research is to utilize flare gas in oil and gas fields to reduce environmental issue. Methodology and Results: Flare gas in an oil producing field is compressed to produce higher pressure gas flow, by using three one-stage Integrated Reciprocating Compressors to enter the production trunk line. The gas is flown to CO2 Removal Plant, as the gas would be gas sales. The subject field in West Java, the production wells experiences pressure decline; resulting the wellhead flowing pressure becomes low, so the gas is being flared. The gas flare recovery system is economically profitable both for purchase and rental scenarios. Renting the equipment is more profitable and has lower technical risk, because all risks is burdened to rental service provider. Conclusion, significance and impact study: Monetizing flare gas will reduce environmental issue, and it is utilized for own use or gas sales. The best Economics Scenario is rental scenario.

VALUE INCREASING OF REJECT COAL WITH BIOMASS ADDING AS BIO-COAL BRIQUETTE Dyah Marganingrum; Lenny Marilyn Estiaty
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v3i2.5110

Aim: This paper aims to explain the added value increasing method of reject coal which has not utilized by the company. Methodology and Results: The method to increase added value in this study used the agglomeration process of briquettes form that changing composition by adding biomass. The biomass functions to minimize bottom ash produced from burning briquettes so that the briquettes burn entirely. Stages processes in this study consist of characterization, briquetting, physical test, and chemical test. Based on the analysis, reject coal still has a high calorific value of 5,929 cal/gr. Shapes and sizes that were not following needs of coal market or consumer due to reject coal to be a waste. Briquettes have been successfully produced and meet specification requirements based on applicable regulations in Indonesia. Besides physical properties, the briquette meet density requirements which are greater than or equal to 1 gr/cm3 and shatter index value is less than 0.5%. The gas emission test shows below threshold, which is CO 0-30 ppm, H2S 0-3.6 ppm, and NOx is not detected. After evaluation, it showed that by adding 30% biomass, ignition time could be decreased and remaining unburned briquettes or bottom ash was reduced as much as 68.68%. Conclusion, significance and impact study: The bio-coal briquettes is a strategic solution to environmental problems and alternative energy sources that are environmentally friendly, because CO and H2S emissions are still below the threshold, even for NOx not detected. Making Bio-coal briquettes as a solution to the utilization of reject coal mining waste to be used as an alternative energy source has been successfully carried out.

TRENDS IN URBAN MORPHOLOGICAL DATA CAPTURE: A REVIEW OF THEORETICAL PERSPECTIVES ON UTILITY OF GEOSPATIAL TECHNOLOGY Maurice Onyango Oyugi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v3i2.5237

Aim: The purpose of this paper is to review the trends in the application of geospatial technology in urban morphology data capture and studies. Methodology and Results: This review was guided by critical thinking research approach, which involves analysis of relevant literature on a phenomenon to enable to draw conclusion(s) on whether a claim is true, sometimes true, partly true or false and using methods to applied in critical thinking include broad intellectual criteria such as clarity, credibility, accuracy, precision, relevance, depth, significance and fairness. The results show that increasing urbanization and sub-optimal locations of urban amenities and utilities has resulted in many cities facing environmental, land use and socio-economic challenges. This can be mitigated by the implementation of cost-effective urban development plans and policies together with an in-depth understanding of the interactions existing between urban natural and human systems, an undertaking reliably aided by geospatial technologies notably Remote Sensing, Geographical Information Systems, Global Positioning System and Photogrammetry. Conclusion, significance, and impact study: This paper is therefore anchored on an understanding of urban morphology, factors determining its changes over time and demonstrated achievements of the utility of geospatial technology in the study of the same with policy implications for the applications of the geospatial technology in urban studies.

SUSTAINABILITY WINDOW APPROACH FOR FISHERIES MANAGEMENT AT THE COASTAL AREA OF TERNATE ISLAND, NORTH MALUKU PROVINCE Faizal Rumagia; Mennofatria Boer; Rahmat Kurnia; Mohammad Mukhlis Kamal
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 3, NUMBER 2, APRIL 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v3i2.5476

Aims: This study aims to assess the value sustainable development opportunity of the coral reef fisheries activities in Indonesia from the ecological, economic, and social aspect, with a case study of coral reef fisheries at the coastal area of Ternate Island, using the Sustainability Window (SuWi) approach. Methodology and Results: The data was collected from statistical data from relevant institutions and literature study, which consists of ecological, economic and social data, and analyzed using the Sustainability Window approach to determine the sustainability of the fisheries development. The result shows that the Sustainability Window of the coral reef fisheries in the research area tends to move towards sustainable development, where the national policy in catch fisheries management has an impact on the sustainable development and management of coral reef fisheries at the coastal area of Ternate Island. Conclusion, significance and impact study: The Sustainability Window of coral reef fisheries at the coastal area of Ternate Island tends to move towards sustainable processes, with the width of sustainability window that not too narrow to the coral reef fisheries activities at the provincial and national levels. This condition attaches strings to a precautionary approach in policy decision for the management process, and consideration to the effect that can result from the development policy, both at the provincial and national level. The use of Sustainability Windows approach can provide a new simple way for assessing whether the development has been towards a more sustainable direction or not.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Astri Rinanti

Contact Email
astririnanti@trisakti.ac.id

Phone
+6221-5663232

Journal Mail Official
urbanenvirotech@trisakti.ac.id

Editorial Address
Department of Environmental Engineering Faculty of Landscape Architecture and Environmental Technology Universitas Trisakti, Jakarta Gedung K, Kampus A Jl. Kyai Tapa Grogol Jakarta 11440, Indonesia

Location
Kota adm. jakarta barat,

Dki jakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Astri Rinanti

Contact Email astririnanti@trisakti.ac.id

Phone +6221-5663232

Journal Mail Official urbanenvirotech@trisakti.ac.id

Editorial Address Department of Environmental Engineering Faculty of Landscape Architecture and Environmental Technology Universitas Trisakti, Jakarta Gedung K, Kampus A Jl. Kyai Tapa Grogol Jakarta 11440, Indonesia

Location Kota adm. jakarta barat, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Astri Rinanti

Contact Email
astririnanti@trisakti.ac.id

Phone
+6221-5663232

Journal Mail Official
urbanenvirotech@trisakti.ac.id

Editorial Address
Department of Environmental Engineering Faculty of Landscape Architecture and Environmental Technology Universitas Trisakti, Jakarta Gedung K, Kampus A Jl. Kyai Tapa Grogol Jakarta 11440, Indonesia

Location
Kota adm. jakarta barat,

Dki jakarta

INDONESIA