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ASSESSMENT OF CONCENTRATION STATUS OF SOME HEAVY METALS IN WATER ALONG RIVER DILIMI, JOS NORTH, PLATEAU STATE-NIGERIA Ezekiel Oiganji; K. I. Dikam
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Aim: This study was carried out to assess concentration status of someheavy metals in water along River Dilimi, Nigeria. The Nigerian inland waterbodies have been subjected to various forms of degradation due topollution. River Dilimi in Jos North of Plateau state capital is one of suchendangered inland water bodies. Activities around and in the river has ledto discharge of various heavy metal pollutants into the aquaticenvironment rendering water unsuitable for its intended purposes.Methodology and Results: Six (6) water samples were collected at theupper, centre and lower section of the river at the 20 and 120 cm depth, for every six (6) weeks making a total of eighteen (18) samples, Analyzed atNigerian Institute of Mining and Geosciences, Jos. The water samplescollected were pre-treated with few drops of concentrated Nitric acid, anddigested with Aqua-regia in the ratio of 3:1 for an hour. Different standardsolutions were prepared for AAS analysis under Beer-Lambert method ofmetal analysis using Atomic Absorption Spectrophotometer (AAS). Thedata obtained were subjected statistical analysis. The results obtained fromanalyzed water samples were alarming, iron, lead, cadmium andManganese were above the recommended threshold by 277, 6,400, 1,233and 580% accordingly, while zinc and copper were within permissible limit.Conclusion, significance and impact study: River Dilimi can be said to behighly concentrated with hazardous metals of concern like Fe, Pb, Cd andMn. This as a result of bioaccumulation will affect human and animalhealth, aquatic life and crop productivity.

URBAN FACADE GEOMETRY ON OUTDOOR COMFORT CONDITIONS: A REVIEW Elahe Mirabi; Nasrollahi Nazanin
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Designing urban facades is considered as a major factor influencing issuessuch as natural ventilation of buildings and urban areas, radiations in theurban canyon for designing low-energy buildings, cooling demand forbuildings in urban area, and thermal comfort in urban streets. However, sofar, most studies on urban topics have been focused on flat facadeswithout details of urban layouts. Hence, the effect of urban facades withdetails such as the balcony and corbelling on thermal comfort conditionsand air flow behavior are discussed in this literature review. Aim: Thisstudy was carried out to investigate the effective factors of urban facades,including the effects of building configuration, geometry and urbancanyon’s orientation. Methodology and Results: According to the results,the air flow behavior is affected by a wide range of factors such as windconditions, urban geometry and wind direction. Urban façade geometrycan change outdoor air flow pattern, thermal comfort and solar access.Conclusion, significance and impact study: In particular, the geometry ofthe facade, such as indentation and protrusion, has a significant effect onthe air flow and thermal behavior in urban facades and can enhanceoutdoor comfort conditions. Also, Alternation in façade geometry canaffect pedestrians' comfort and buildings energy demands.

ENVIRONMENTAL AND HEALTH RISK ASSESSMENT (EHRA) APPROACHES IN THE STRATEGIC ENVIRONMENTAL RISK ASSESSMENT (SEA) : A METAANALYSIS Anindrya Nastiti; Siska Widya D Kusumah; Mariana Marselina; Karina Nursyafira; Astrid Monica; Dharmawan Phan
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Aim: This paper aims to understand how the concept of risk and riskgovernance can be best articulated and integrated into Indonesia’s SEA.Attention regarding health risks emerging from human interactions withthe physical environment has increased in Sustainable Development andPlanning (SDP). Methodology and Results: Strategic EnvironmentAssessment (SEA) is the current context-based methodology addressingenvironmental and health risks of development planning in manycountries. Environmental and health risk assessment (EHRA) is anintegrated part of the SEA. EHRA, as a field of science, has evolved towardsspecific needs in many sectors, e.g. dose-response, quantitative microbialrisk assessment, ecological risk assessment. The main challenge is how todetermine the suitable EHRA approaches and translate the fact-basedEHRA into risk-informed strategies in SDP. In Indonesia, the SEA is mandatory for regional planning documents. However, there is limitedguidelines and application on EHRA in SEA. Through a meta-analysis, wereviewed scholarly articles published from 2009 to 2019 available inGoogle Scholar that report the concepts and implementation of EHRA andSEA in various countries. Conclusion, significance and study impact: Thisstudy has significant implications for the understanding of risk governancein SDP.

DECOLORIZATION OF DISTILLERY EFFLUENT WASTE BY MICROBIAL CONSORTIUM Gauri Singh; Ashok Kumar Singh
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Aim: The effluent discharged from sugarcane molasses based distilleries causes environmental pollution due to its large volume and dark brown colour. The effluents also acifidys soils and causes harmful effects on agriculture crops. The objective of this work was the decolourization of molasses waste water from Doiwala sugar industry, Dehradun was done using different microbial consortiums. Methodology and Results: The microbial strains used in this study were obtained from IMTECH, Chandigarh. They were designated as A is E. coli, B is Pseudomonas aeruginosa, C is Staphylococcus aureus, D is Serritia odoriferae, E is Proteus vulgaris and F is Candida albicans. A total of six combinations were prepared using these strains i.e A+B, C+D, E+F, A+B+C, D+E+F and A+B+C+D+E+F. These consortiums were subjected to decolorization experiment of molasses waste water from Doiwala Sugar Factory, Dehradun, India at regular time interval by measuring the optical density. It was observed that at 7th day incubation in each case all consortiums showed maximum decolorization after which the percentage of decolorization was stable. It was also observed that the bacterial consortiums showed higher decolorization than the mixture of bacteria and fungi. Consortium C+D showed highest decolorization i.e. 89%. Conclusion, significance and impact study: it is recommended that industry should work with this consortium for decolorization of molasses containing wastewater to solve this environmental problem.

THE EFFECT OF HARMFUL AND FAVORABLE GAS AND CHEMICAL CONTENT EMITTED BY MUD VOLCANO TO ENVIRONMENT Muhammad Burhannudinnur; Rosmalia Dita Nugraheni; Astri Rinanti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

The recent eruption of Kesongo mud volcano (MV) that occurred in 28August 2020 in Blora, Central Java was a common natural phenomenon.MV eruption occurred periodically depending on the recharge fluid systemthat interconnected to a geothermal system and hydrocarbon reservoir.During the eruption, methane and CO2 gas were emitted to theatmosphere together with rocks, muds and fluids flowing from the fractureand fault system of MV. The extruded materials could be harmful andbeneficial for the affected ecosystem. Aims: This study aimed to addressthe potential impact of the extruded mud volcano materials to theenvironment. Methodology and Results: An attempt was carried out byinvestigating gas and fluid content of every mud volcano morphology in theselected 11 areas of Kradenan, Central Java and Sidoarjo, East Java. The pristine fluids and gas of MV were sampled for chemical and toxiccompound observation. Gas composition and type was observed using gaschromatography. The result shows that methane gas content ranges from0.06 to 67.6 mol%., while the CO2 content ranges from 0.21 to 79.9 mol%.Methane gas exhibits thermogenic gas that associated with hydrocarbongeneration. Conclusion, significance and impact study: The chemicalcompound of fluids indicates high Boron (B) content above 0.5 ppm whichhas harmful effect for crops and human health, but some compounds ofCa, Na, K, Mg present as essential elements for soil nutrient. According tothe methane flux and chemical compound emitted by mud volcano, thisstudy contributes to a management practice to restore and conserve the global ecosystem.

ANALYSIS OF SUSTAINABLE WATER RESOURCES MANAGEMENT BASED ON THE POTENTIAL WATER AVAILABILITY IN THE SEMI-ARID AREA OF KUPANG, INDONESIA Marlin A Koan; Jakobis Johanis Messakh; Soetedjo IN P
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Aims: This study discusses water resources management based on water discharge potential of the Oebobo-Liliba watershed in Kupang City, East Nusa Tenggara, Indonesia. Methodology and Results: River water discharge was analyzed based on hydrological data of a span of 10-years. Average rainfall was calculated using the arithmetic mean method, and potential evapotranspiration (ETo) was calculated through Penman Modification with CROPWAT 8.0. The discharge analysis was conducted through a Mock method. Change in land cover was rendered using related land maps from year 2008 and 2018. Management of agricultural land was discussed through a descriptive analysis. The results showed an average monthly discharge of 0.667 m3/sec. The need for clean water is rendered to be 170 liters/person/day, and the discharge requirement of 90% = 281 liters/sec is concluded to be able to meet the community's clean water needs which amounts to 142,569 people. The total area of paddy fields is 5.38 Ha with water requirements of 1.5 liter/sec/ha, where 80% or 348 Liter/sec can be used to irrigate 232 hectares of paddy. Further results show that land cover in dryland forests decreased from 15% to 10%, settlements increased from 20% to 49%, and shrubs diminished from 20% to 0%. Conclusion, significance and impact study: The minimum debit trend shows a declining trend, while the maximum discharge trend shows an inclining trend. This research concludes that water discharge is adequate to meet community needs yet requires proper water resources management strategy from upstream to downstream of the watershed.

COMPARATIVE STUDY OF ELECTROLYSIS-ENHANCED ANAEROBIC DIGESTION OF THREE SOLUBLE SOLID WASTES FOR BIOGAS PRODUCTION Adewumi A; Lasisi K H; Akinmusere O K; Ojo A O; Babatola J O
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Aim: A comparative study of biogas production from three soluble solid wastes was conducted under anaerobic conditions by subjecting each waste to both conventional and electrolyzed digesters. Methodology and Results: Varying weight of each of the waste was mixed thoroughly with water and fed into five digesters. Three of these digesters were electrolytically-enhanced while the other two were not. The digestion of each of the wastes was monitored for 40 days at an ambient temperature ranging from 24 to 35oC. In all the digesters, biogas production started on the day 2, and attained maximum value on day 14 to17. Biogas production ended on the day 34 and 35 in digester 1a, 1b, 2a and 2b with production ending earliest in digester 3 containing wastewater on day 19. The highest biogas was produced in digester 2b containing electrolyzed digester loaded with poultry droppings) with a cumulative volume percentage of 91.41 as compared to its conventional state with a cumulative volume percentage of 85.19 and both states of the cow dung waste with cumulative volume percentages of 77.26 and 71.64 respectively. The least production occurred in digester 3 with a cumulative volume percentage of 4.59. Conclusion, significance and impact study: It is therefore concluded that poultry droppings has the greatest potentials for the generation of biogas as compared to cow dung in conventional and electrolyzed state and wastewater.

ASSESSMENT OF CONCENTRATION STATUS OF SOME HEAVY METALS IN WATER ALONG RIVER DILIMI, JOS NORTH, PLATEAU STATE-NIGERIA Ezekiel Oiganji; K. I. Dikam
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v4i1.6768

Aim: This study was carried out to assess concentration status of someheavy metals in water along River Dilimi, Nigeria. The Nigerian inland waterbodies have been subjected to various forms of degradation due topollution. River Dilimi in Jos North of Plateau state capital is one of suchendangered inland water bodies. Activities around and in the river has ledto discharge of various heavy metal pollutants into the aquaticenvironment rendering water unsuitable for its intended purposes.Methodology and Results: Six (6) water samples were collected at theupper, centre and lower section of the river at the 20 and 120 cm depth, for every six (6) weeks making a total of eighteen (18) samples, Analyzed atNigerian Institute of Mining and Geosciences, Jos. The water samplescollected were pre-treated with few drops of concentrated Nitric acid, anddigested with Aqua-regia in the ratio of 3:1 for an hour. Different standardsolutions were prepared for AAS analysis under Beer-Lambert method ofmetal analysis using Atomic Absorption Spectrophotometer (AAS). Thedata obtained were subjected statistical analysis. The results obtained fromanalyzed water samples were alarming, iron, lead, cadmium andManganese were above the recommended threshold by 277, 6,400, 1,233and 580% accordingly, while zinc and copper were within permissible limit.Conclusion, significance and impact study: River Dilimi can be said to behighly concentrated with hazardous metals of concern like Fe, Pb, Cd andMn. This as a result of bioaccumulation will affect human and animalhealth, aquatic life and crop productivity.

URBAN FACADE GEOMETRY ON OUTDOOR COMFORT CONDITIONS: A REVIEW Elahe Mirabi; Nasrollahi Nazanin
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v4i1.7151

Designing urban facades is considered as a major factor influencing issuessuch as natural ventilation of buildings and urban areas, radiations in theurban canyon for designing low-energy buildings, cooling demand forbuildings in urban area, and thermal comfort in urban streets. However, sofar, most studies on urban topics have been focused on flat facadeswithout details of urban layouts. Hence, the effect of urban facades withdetails such as the balcony and corbelling on thermal comfort conditionsand air flow behavior are discussed in this literature review. Aim: Thisstudy was carried out to investigate the effective factors of urban facades,including the effects of building configuration, geometry and urbancanyon’s orientation. Methodology and Results: According to the results,the air flow behavior is affected by a wide range of factors such as windconditions, urban geometry and wind direction. Urban façade geometrycan change outdoor air flow pattern, thermal comfort and solar access.Conclusion, significance and impact study: In particular, the geometry ofthe facade, such as indentation and protrusion, has a significant effect onthe air flow and thermal behavior in urban facades and can enhanceoutdoor comfort conditions. Also, Alternation in façade geometry canaffect pedestrians' comfort and buildings energy demands.

ENVIRONMENTAL AND HEALTH RISK ASSESSMENT (EHRA) APPROACHES IN THE STRATEGIC ENVIRONMENTAL RISK ASSESSMENT (SEA) : A METAANALYSIS Anindrya Nastiti; Siska Widya D Kusumah; Mariana Marselina; Karina Nursyafira; Astrid Monica; Dharmawan Phan
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v4i1.7191

Aim: This paper aims to understand how the concept of risk and riskgovernance can be best articulated and integrated into Indonesia’s SEA.Attention regarding health risks emerging from human interactions withthe physical environment has increased in Sustainable Development andPlanning (SDP). Methodology and Results: Strategic EnvironmentAssessment (SEA) is the current context-based methodology addressingenvironmental and health risks of development planning in manycountries. Environmental and health risk assessment (EHRA) is anintegrated part of the SEA. EHRA, as a field of science, has evolved towardsspecific needs in many sectors, e.g. dose-response, quantitative microbialrisk assessment, ecological risk assessment. The main challenge is how todetermine the suitable EHRA approaches and translate the fact-basedEHRA into risk-informed strategies in SDP. In Indonesia, the SEA is mandatory for regional planning documents. However, there is limitedguidelines and application on EHRA in SEA. Through a meta-analysis, wereviewed scholarly articles published from 2009 to 2019 available inGoogle Scholar that report the concepts and implementation of EHRA andSEA in various countries. Conclusion, significance and study impact: Thisstudy has significant implications for the understanding of risk governancein SDP.

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