scholarly journals Preface

2021 ◽  
Vol 909 (1) ◽  
pp. 011001
Keyword(s):  
Water Quality ◽  
Waste Management ◽  
Hazardous Waste ◽  
Environmental Quality ◽  
Plenary Session ◽  
National Standard ◽  
Parallel Session ◽  
Mercury Reduction

These proceedings are the output of the 6th International Conference of Indonesia Forestry Researchers - Stream 1 Emerging Environmental Quality for Better Living (INAFOR 2021 Stream 1) that was organised virtually by the Center for Standardization of Environmental Quality Instruments, Agency for Standardization of Environment and Forestry Instruments, Ministry of Environment and Forestry of Republic of Indonesia on 08 September 2021. The conference was held during the pandemic of covid-19, and due to the international and national travel restriction, the conference was carried out via online platform. The conference presented and discussed the current environmental issues in Indonesia including monitoring of environmental pollution, role of environmental laboratory and set up national standard of environmental monitoring; circular economy and environmental quality management by businesses and relevant activities; mercury pollution, progress of National Action Plan for mercury reduction and elimination as a part of the ratification of Minamata Convention on Mercury; medical wastes and disposal concerning Covid-19 pandemic and antibiotically resistance; domestic waste, hazardous and poisonous materials and wastes; restoration and remediation of contaminated lands; and freshwater litters. The conference arranged into two sessions; they were oral presentations from keynote speakers in the plenary session and scholar presenters in the parallel session. In the first session, the keynote speakers were each allocated 25-30 minutes for presentation and 30 minutes for panel discussion (Q and A). There were four international keynote speakers contributed to the plenary session. Firstly, Prof. Dr. Satoshi Murao represented Daiichi Institute of Technology, Japan, talked about Mercury Reduction from Artisanal Gold Mining Sector. Secondly, Prof. Dr. Seca Gandaseca from University Putra Malaysia presented Water Quality of Tropical Forest Ecosystems. Thirdly, the Director for Performance Evaluation of Hazardous Waste and Non-Hazardous Waste Management of the Ministry of Environment and Forestry of Republic of Indonesia discussed The Regulation of Covid-19 Medical Waste Management in Indonesia. The last, Dr. Nur Sumedi, S.Pi., M.P., as Acting Secretary of Agency for Standardization of Environment and Forestry Instruments, Ministry of Environment and Forestry of Republic of Indonesia discussed The Role of Science and Technology to Support the Improvement of Environmental Quality. In the parallel session, selected papers were presented by scholars in 10 minutes, and followed by 5 minutes discussion. The parallel session was divided into four different meeting room. Two rooms discussed the topic of anthropogenic pressure on environment and COVID-19 related mitigation: one room talked water quality of various ecosystems and another room conferred mercury, lead, and persistent organic pollutants (POPS) contamination. The conference was successfully run via a “Zoom” application meeting. At the plenary session, all participants joined in a plenary meeting “zoom” room. After this session, the participants were then assigned into a “breakout” room based on their academic or professional background. Finally, they re-joined the plenary room for the wrap up and closing ceremony. Lastly, we would like to express our sincere gratitude to the organizing committee and the members of reviewers for their kind assistance in reviewing the papers. We also thank to the chairman, scientific committees, keynote speakers, and all participants. We greatly thanks to the publisher for publishing the selected papers. We are looking forward to the next collaboration. List of Editors are available in this pdf.

scholarly journals PERAN RUANG TERBUKA HIJAU DALAM PERENCANAAN KOTA SEBAGAI POTENSI PEMBENTUK SMART CITY

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Hanny Maria Caesarina ◽  
Nahdi Saubari
Keyword(s):  
Urban Planning ◽  
Environmental Quality ◽  
Smart City ◽  
Green Space ◽  
Field Survey ◽  
Supporting Element ◽  
Internet Network

Ruang terbuka hijau telah dikenal memiliki peranan yang penting dalam meningkatkan kualitas lingkungan perkotaan. Ruang terbuka hijau dalam perencanaan kota kerap dianggap sebagai elemen pendukung terwujudnya smart city. Penelitian ini bertujuan untuk menemukan seberapa jauh peran ruang terbuka hijau lewat penyediaan wifi corner dalam perencanaan kota menuju konsep smart city. Metode yang digunakan adalah deskriptif kualitatif berdasarkan observasi, survey lapangan dan serangkaian wawancara. Studi kasus yang diambil dalam penelitian ini adalah dua kota di Kalimantan Selatan, yaitu Banjarmasin dan Banjarbaru yang telah memiliki konsep smart city. Hasil penelitian menunjukkan bahwa ruang terbuka hijau dalam perencanaan kota memiliki potensi yang kuat sebagai elemen pembentuk smart city. Apabila ruang terbuka hijau suatu kota telah direncanakan dengan baik dari berbagai segi fasilitas dan terkoneksi dengan jaringan internet yang berkualitas, maka dengan sendirinya konsep smart city akan lebih mudah dicapai. Kata kunci: perencanaan kota, ruang terbuka hijau, smart city, wifi corner. Green space has an important role in enhancing environmental quality of a city. Green space often considered as a supporting element for the concept of smart city. This research intended to acknowledge the role of green space through the installation of wifi corner in urban planning towards smart city. The methods that has been used was descriptive qualitative through observation, field survey and interviews. The case study in this research were Banjarmasin and Banjarbaru which already has the smart city concepts. The result shows that green space in urban planning is a potential element towards smart city. A well good planned green space with all the facilities that connected to a good internet network in a city might help forming the concept of smart city. Keywords: green space, smart city, urban planning, wifi corner.

scholarly journals PURIFICATION OF BIODIESEL USING RICE STRAW AND DIOSCOREA ALATA STARCH AS NATURAL ADSORBENTS

2019 ◽  
Vol 19 (1) ◽  
pp. 12-17
Author(s):  
Yulidar Yulidar ◽  
Saiful Saiful ◽  
Ilham Maulana
Keyword(s):  
Rice Straw ◽  
Acid Value ◽  
National Standard ◽  
Dioscorea Alata ◽  
Potassium Oleate ◽  
Natural Adsorbents ◽  
Washing Method ◽  
Initial Content

Janeng starch (Dioscorea Alata) and rice straws are developed to be used as adsorbents in dry washing method to purify crude biodiesel. In this study, we evaluate the potential of rice straw and janeng starch as natural adsorbents in the purification of biodiesel that replace the role of water in absorbing contaminants from biodiesel. The SEM characterization results show that the starch adsorbent and rice straw has an open and porous surface and is evenly distributed for janeng starch. Both adsorbents, either the janeng starch or rice straw, can be applied for the purification of biodiesel. The quality of biodiesel is influenced by the amount of adsorbents used in biodiesel purification. The effectiveness of the adsorbent is shown by the decrease in free fatty acids, alkali numbers, soap numbers and turbidity levels in biodiesel. The concentration of free fatty acid oil in crude biodiesel before the purification step was 0.769 mg-KOH/g, then decreased to 0.128 mg-KOH/g after the adsorption. This acid value had been very low and met the Indonesian quality national standard for biodiesel spesically 0.50 mg-KOH/g. Either janeng starch or rice straw adsorbent was able to reduce the soap content of potassium oleate to level 53.33 ppm from the initial content of 106.67 ppm. These two natural adsorbents can be the alternative adsorbents in the purification of biodiesel that employs dry washing method.

scholarly journals Contribution of Internal Nutrients Loading on the Water Quality of a Reservoir

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1409 ◽  
Author(s):  
Hye Won Lee ◽  
Yong Seok Lee ◽  
Jonggun Kim ◽  
Kyoung Jae Lim ◽  
Jung Hyun Choi
Keyword(s):  
Water Quality ◽  
Sediment Load ◽  
Transport Model ◽  
Three Dimensional ◽  
Algal Growth ◽  
Nutrient Concentrations ◽  
Internal Load ◽  
Phosphorus Flux

Sediment plays an important role in the water quality of a lake by acting as both a nutrient source and sink. The amount of phosphorus and nitrogen in the water depends on the internal load from the sediment as well as the external load. To estimate the effects of sediment load on the water quality of a reservoir, we applied a three-dimensional hydrodynamic and transport model based on the benthic chamber experimental results at Euiam Lake, South Korea. As shown in the sensitivity analysis results, the eutrophication period could be significantly extended by a change of phosphorus flux rates from the sediments. The increased phosphorus flux from the sediments intensifies the algal growth of Euiam Lake, which could cause serious algal bloom during spring and fall. This study provides information on nutrient concentrations in the sediment of Euiam Lake, verifies the role of the sediment as a source or sink of nutrients, and evaluates the effect of sediment release of nutrients and contaminants on water quality. This research is a useful tool in determining the effects of internal load in lakes and establishing the operation guideline for sediment management in order to maintain feasible water quality for beneficial use.

The Role of Universities in Hazardous Waste Management Part I: Teaching and Research

1990 ◽  
Vol 7 (2) ◽  
pp. 211-221 ◽  
Author(s):  
C. A. WENTZ ◽  
R. W. PETERS ◽  
H. R. KAVIANIAN ◽  
C. D. MONTEMAGNO
Keyword(s):  
Waste Management ◽  
Hazardous Waste ◽  
Teaching And Research ◽  
Hazardous Waste Management

Are Preferences for Water Quality Different for Second-Home Residents?

2009 ◽  
Vol 15 (3) ◽  
pp. 629-651 ◽  
Author(s):  
Catalina M. Torres ◽  
Antoni Riera ◽  
Dolores García
Keyword(s):  
Water Quality ◽  
Environmental Quality ◽  
Coastal Area ◽  
Inverse Correlation ◽  
Water Transparency ◽  
Second Home ◽  
New Type ◽  
Key Variables ◽  
Recreational Use

The latest trends in tourism indicate the emergence of a new segment of visitors looking for accommodation in private residences. The increase in second-home residents has led to efforts to improve knowledge of the preferences of this new type of tourist in those destinations where their presence is considerable. As one of the key variables affecting the choice of residential tourists is the environmental quality of the area, this paper focuses on testing for the existence of an inverse correlation between the loss of coastal water transparency, viewed as a measure of environmental quality, and beach aesthetics in Santa Ponça Bay, a Mallorcan coastal area containing two urban beach zones of intensive recreational use, where the proportion of second-home residents is high. The results show that the willingness to pay for improvements in water transparency diminishes in a non-linear way when transparency deteriorates, resulting in no statistically significant differences between first- and second-home residents.

scholarly journals The role of the mahogany tree (Swietenia macrophylla King) on quantity and quality of water that fall below the canopy

2021 ◽  
Vol 918 (1) ◽  
pp. 012036
Author(s):  
M F Fadhilah ◽  
Y Hidayat ◽  
A Hadiyane
Keyword(s):  
Water Quality ◽  
Quality Measurement ◽  
Hardness Measurement ◽  
Swietenia Macrophylla ◽  
Quality Of Water ◽  
The Impact ◽  
Water Quality Measurement ◽  
Rainwater Quality

Abstract Mahogany trees (Swietenia macrophylla) are often planted in urban forests area. This shady-crowned tree has a role in controlling the quantity and quality of rainwater that falls to the ground. Mahogany trees also affect the quality of rainwater through interception, fall, and stemflow. The purpose of this research was to determine the impact of the interception process, such as throughfall and stemflow, on changes in rainwater quality of the mahogany tree. The Data that needed to be measured were tree dimension, rainfall interception, and rainwater quality. Interception measurement was performed by calculating the number of throughfall and stemflow in one month-measurement. While the measurement of rainwater quality was measured once in the laboratory. These water quality measurements include Electrical Conductivity (EC), hardness, the content of Elements Ca, Mg, Na and K, and pH concentrations. The results based on the total area of the crown showed that mahogany had an interception value of 18.088%. In the throughfall measurement, the mahogany has a throughfall of 81.799%, while the amount of the stemflow is only 0.113%. The correlation of interception values, throughfall, and stemflow with rainfall are in general positively correlated. That means the higher rainfall water will increase the number of interception, throughfall, and stemflow. The results on water quality measurement explain that Ec value in rainwater interception was increased compared to water produced from rainfall in mahogany trees. It also has the same condition in hardness measurement. In pH measurements, the interception of rainwater has less pH when compared to direct rainfall water. In addition, the content of Elements Ca, Mg, K, and Na in Stemflow and Throughfall water have more numbers than rainfall itself.

scholarly journals Bacteriological and Physicochemical Assessment of Water Quality of the Public Swimming Pools in Klang Valley Malaysia

2020 ◽  
Author(s):  
Muhammad Naim Rosli
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Physicochemical Parameters ◽  
National Standard ◽  
World Health ◽  
Personal Hygiene ◽  
Plate Count ◽  
Total Bacterial Count ◽  
Swimming Pools

Abstract Background: Water is essential for life and it been used for various activities such as drinking, bathing, and recreational purposes and also one of the modes of the transmission of the disease.Objective: The objective of this study to assess the presence of bacteriological and physicochemical quality of swimming pools’ water in Lembah Klang, Malaysia.Methodology: Seven water samples collected from outdoor and indoor swimming pools (hotel, apartment, and public swimming pool) in Lembah Klang, Malaysia. Water samples were collected in sterile bottles (30 ml). Physicochemical parameters were determined using water quality testing kit pH & chlorine apparatuses. The water sample was cultured and incubated. The presence of bacteria was counted by the total bacterial count method.Result: The ranges of mean values of the various chlorine level parameters of the selected water samples investigated for the apartment, hotel, and municipal were, 0.56±1.01, 0.77±0.95, and 1.19±0.91. All the physicochemical parameters except conductivity values were within the permissible limits of the World Health Organization (WHO) standards 2006 and American National Standard for Water Quality in Public Pools and Spas (ANSI/APSP) 2015. The mean, standard plate count of water samples from the selected apartment, hotel, and municipal’s swimming pools were, 28407.14±28469.05, 8192.86±10556.36, and 3257.14±6250.17which above the WHO Guideline limit, thus signifying contamination.Conclusion: The study recommends improvement in the personal hygiene of swimmers, adequate cleansing of the pools, and enforcement of standards by the government.

scholarly journals Peran Kelompok Masyarakat dalam Rehabilitasi Ekosistem Mangrove di Pesisir Kota Semarang

2018 ◽  
Vol 6 (2) ◽  
pp. 100 ◽  
Author(s):  
Nana Kariada Tri Martuti ◽  
Sri Mulyani Endang Susilowati ◽  
Wahid Akhsin Budi Nur Sidiq ◽  
Ditha Prasisca Mutiatari
Keyword(s):  
Environmental Quality ◽  
Coastal Area ◽  
Wave Breaking ◽  
Local Community ◽  
Analysis Method ◽  
Community Based ◽  
Interactive Analysis ◽  
Community Based Programs

The coastal area of Semarang City has a strategic function for regional economic development. Due to land use change, the environmental quality of coastal area is damaged and declining. The environmental quality decline has affected the socio-economic quality of local community. This research aims to investigate the role of local community in sustainable environmental management in Semarang City coastal area. The study takes place in two kelurahans, namely Tugurejo and Mangunharjo, and applies a descriptive qualitative approach to figure out the local community role in the coastal environment rehabilitation. Data collection through a preliminary survey supported with a satellite imagery study covers up an appropriate ecosystem with the research substance. Then the following data analysis and interpretation uses Miles and Huberman interactive analysis method. The results show the significant role of the local community in coastal area quality management and improvement in Semarang City more effectively and efficiently. This relates to their active interactions in various community-based programs including wave-breaking instrument building and mangrove nursery and planting.

Assessing the environmental impact of water discharge in a sensitive near-shore marine environment

2013 ◽  
Vol 53 (1) ◽  
pp. 301 ◽  
Author(s):  
Katrina Hall ◽  
Scott Chidgey
Keyword(s):  
Water Quality ◽  
Marine Environment ◽  
Environmental Quality ◽  
Water Discharge ◽  
Monitoring Program ◽  
Toxicity Testing ◽  
Treated Wastewater ◽  
Environmental Study ◽  
Environment Protection

Esso’s Long Island Point facility has been operating for more than 40 years beside Western Port in Victoria, and has discharged treated wastewater and storm water to the bay for most of these years. The 2001 State Environment Protection Policy Schedule F8 for Waters of Western Port is part of Victoria’s Environment Protection Authority’s (EPA) legal framework for licensing discharges to the waters of Victoria, and requires that discharges ‘cause no detrimental change in the environmental quality of the receiving waters, as determined by an environmental monitoring program’. As part of Esso’s ongoing commitment to continuous improvement, a major upgrade to the water treatment facility was completed to further improve the quality of waters discharged to Western Port. In conjunction with this upgrade, Esso is undertaking a study on the effects of the discharge on the environmental quality of Western Port. This peer-reviewed paper presents an example of the practical application of managing discharges to ensure that the stated environmental values of a receiving environment are protected. The environmental study focuses on four key aspects of marine-environment quality relevant to key Western Port ecosystem values in the vicinity of the facility’s effluent discharge, which are: ambient water quality; seagrass biomass; jetty pile epibiota; and, ecological risk through toxicity testing. The study demonstrates the implications of basing regulatory requirements on the quality of the site-specific environmental characteristics, rather than merely effluent quality and generalised water quality objectives. Furthermore, it validates the need for sound science to underpin regulatory limits and industry practices when operating in sensitive environments.

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