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INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY

urbanenvirotech
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Published by Universitas Trisakti

ISSN : 25799150 EISSN : 25799207 DOI : https://dx.doi.org/10.25105

Core Subject : Science, Agriculture, Social, Engineering,

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science

The scope of the journal emphasis not limited to urban environmental management and environmental technology for case study in Indonesia and for other region in the world as well. Urban Environmental Management: environmental modeling, cleaner production, waste minimization and management, energy management and policies, water resources management, water supply and sanitation, industrial safety and health, water recovery and management, urban environmental pollution-diseases and health status, eco-drainage, flood risk management, risk mitigation, climate change and water resource adaptation. Environmental Technology: energy efficiency, renewable energy technologies (bio-energy), environmental biotechnology, pollution control technologies (wastewater treatment and technology), water treatment and technology, indigenous technology for climate change mitigation and adaptation, solid waste treatment and technology

Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan

Articles 328 Documents

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THE PROSPECT OF DIGITALLY ENHANCED COLORIMETRY AS AN ANALYTICAL METHOD FOR WATER QUALITY DETERMINATION Rijal Hakiki; Temmy Wikaningrum
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Aim: This study aims to observe the potential implementation of analytical methods based on digital image processing as an alternative method of colorimetric analysis that can be implemented in site. Methodology and Results: Pt-Co standard series solutions at concentrations of 5, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 concentration units (CU) were measured by spectrophotometric method and digitally enhanced colorimetric (DEC) method to obtain a response in the form of absorbance (Abs) and area under curve (AUC) value. Absorbance measurement was carried out at 317.5 nm (λ max). The AUC value was obtained from the 3-point RGB value measurements, made average so that a color band is produced, then quantified by translating the color band intensity into the response curve in ImageJ software. The Abs and AUC values of artificial samples are processed into CU values with linear equations resulting from linear regression test. The results of the calculation of CU values from the two measurement methods were tested using independent t test method to examine significant differences between the two measurement methods. Conclusion, significance and impact study: Coefficient of determination (R2) plot CU VS AUC = 0.8638, in independent t test was obtained p-value = 0.4246 at the 95% confidence level. Therefore, it can be concluded that digitally enhanced colorimetric could be used to determine water quality, especially color parameter in site measurement.

LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS Sandra Madonna; Sirin Fairus; Nadya Nurul Amelinda
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: Results showed that Alum with a concentration of 200 mg/L was the most effective coagulant, with removal efficiency for each parameter is as follows TDS = 82.17%, TSS = 67.69%, BOD = 60.16%, and COD = 59.76%.

ARTIFICIAL RECHARGE FOR SUSTAINABLE GROUNDWATER MANAGEMENT PLAN IN YOGYAKARTA Nishi Verma; Martin Anda; Yureana Wijayanti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Aim: This study investigates the development of a sustainable groundwater management strategy in Yogyakarta province through groundwater recharge technologies. This study also compares technologies used in the province and the one already implemented in Perth due to its similar nature in site geology and hydrogeology. Methodology and Results: Primary and secondary data were collected and analyzed. Water depth and hydraulic conductivity data were analyzed using permeameter and GIS program. GIS image analysis of water depth and hydraulic conductivity suggested that the placement of potential aquifer recharge sites would be best suited in the north-east part of the province, slightly outside the study area, to provide water for all. Two recharge schemes of an infiltration basin and an injection well with storm water detention tank were proposed. The injection well was decided upon, despite its higher cost, due to the impermeability of soils in Yogyakarta and possible water seepage to the environment. Similar to Perth’s Hartfield park scheme, an injection well would directly bypass these soil layers to recharge the aquifers with rainwater and storm water. Hartfield Park injects 4400 kL of water/year. Conclusion, significance and impact study: The findings of this study indicate aquifer recharge is a possible solution to overcome Yogyakarta’s high abstraction. Further studies recommend that injection well trials are further developed in terms of location, depth and sizing.

EVALUATION OF WASTE MANAGEMENT ACHIEVEMENT IN PADANGTEGAL PEKRAMAN VILLAGE, UBUD SUB DISTRICT, GIANYAR DISTRICT, BALI I Made Wahyu Widyarsana; Kania Salmaa
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Aim: This study aims to evaluate the practice of waste management system conducted by community and business units in one traditional village in Bali and to discover the contributing factors to the success of the practice. Methodology and Results: A set of waste sampling method, observation, and interview were conducted to collect the basis data for the data calculation and analysis. The results show that the waste generation in Padangtegal Village currently reaches 38.18 m3/day or 1145.41 m3/month, with the largest weight composition from leaves and twigs waste (39.87%), food waste (29.07 %), and plastic (13.11%). With 100% of waste handling service, the processing of waste carried out in the area only reached 5.06% of 3R behavior (reduce, reuse, and recycle) at the source, and 1.10% composting at the composting house (Rumah Kompos). Conclusion, significance and impact study: Most of the processing carried out at Temesi Recycling is through composting (33.98%) and recovery of recycled material (33.68%), resulting in a residue (26.19%) which is transported to the Suwung Landfill. It could be concluded that organic waste processing through composting and recycling non-organic waste could reduce waste volume transported to the landfill about 67%.

Front Cover Vol. 2 No. 2 April 2019 Astri Rinanti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

Preface Vol. 2 No. 2 April 2019 astri rinanti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 2, April 2019
Publisher : Universitas Trisakti

CONTINUOUS PIGGERY WASTEWATER TREATMENT WITH ANAEROBIC BAFFLED REACTOR (ABR) BY BIO-ACTIVATOR EFFECTIVE MICROORGANISMS (EM4) I Wayan Koko Suryawan; Gita Prajati; Anshah Silmi Afifah; Muhammad Rizki Apritama; Yosef Adicita
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 3, Number 1, October 2019
Publisher : Universitas Trisakti

Aim: The purpose of this study was to determine the efficiency and characteristics of pig wastewater treatment. This was to be achieved using ABR with the addition of effective microorganism4 (EM4) as a bio-activator during the startup process (R1) and without EM4 (R2). Methodology and Results: Piggery wastewater is poured into ABR with 12 hours HRT (hydraulic retention time), though it is reduced to 6 hours after the concentration is stable. The COD removal efficiency at 12 hours HRT was 60% (R1) and 51% (R2). However, the results did not change significantly, since the 6 hours HRT COD efficiency was 57.8% (R1) and 51.3% (R2). The biomass growth rate at R1 is faster than R2 with Food to Microorganism Ratio (F/M) 0.4-0.89 (R1) and 0.68-1.38 (R2) while the yield of methane gas formation was 0.25-0.28 L-CH4/g-COD. Conclusion, significance, and impact study: COD effluent is the total organic material present in the piggery wastewater effluent, which is discharged into water bodies without meeting the set quality standards. This damages the quality of water bodies. The wastewater treatment needs to be prioritized to meet quality standards of COD effluent. Also, the addition of EM4 to the activated sludge reactor improves the COD removal efficiency and biomass growth, though advanced treatment is still needed for piggery wastewater.

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.

MATERIAL FLOW ANALYSIS OF WASTE BANK ACTIVITIES IN INDONESIA: CASE STUDY OF MEDAN CITY Hafizhul Khair; Iga Yusmaidah Siregar; Indriyani Rachman; Toru Matsumoto
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 3, Number 1, October 2019
Publisher : Universitas Trisakti

Aims: This study aims to improve waste bank activities in Medan and make them more efficient Methodology and Results: The study involved the collection of secondary and primary data. The secondary data collected involved a general description of the study area, number, status, and location of the waste bank. Primary data included interviews and field research on selected waste banks. Importantly, survey and data collection were conducted from December 2017 to April 2018. A semi-structured interview survey approach was conducted to collect the data. Using the Material Flow Analysis (MFA) methodology, the findings of the study showed that of the total amount of the input material, 87.4 % is a recyclable waste and 12.6 % water. Also, the waste bank activities generate 87.2% recyclable items, 12.6% wastewater, and 0.2% residues. Conclusion, significance, and impact study: The findings are essential in understanding the use of resources to provide information for improving waste bank activities and waste management. Apart from the community, the government also plays a significant role in supporting the future of waste banks. This study found that waste bank activities are still conventional, with no technology adoption. In the future, the waste bank should be more efficient and manage large amounts of wastes, because the potential for recyclable products is still abundant.

Page 9 of 33 | Total Record : 328

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Home Page

OAI Link

Editorial Team

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Contact Name Astri Rinanti

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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

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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