Sriwijaya Journal of Environment
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Socio Economic Factors Causing Rapid Peatlands Degradation in South Sumatra
Get PDFNaturally peatlands ecosystem belongs to a stable ecosystem and tends to increase its peat thickness, but if the balance of its natural conditions is disturbed, then peatlands are easily degraded and lost altogether. The research aimed to analyze the socio-economic determinant factors causing why peatlands in South Sumatra are rapidly degraded, thus it is threatening the existence of the human life support system. The research method was using an explorative and descriptive method by making the web portal of "Google search engine". Keywords were used for searching ‘peatland’, ‘degradation’ and/or ‘socio-economic causes’ in title and abstract. To analyze priority level of socio-economic aspects in contributing to peatlands degradation, thus an AHP analysis was conducted and interview with selected respondents. The research resulted that socio-economic determinant factors causing peatlands degradation are complex and integrated each other. Based on clustering the main sequence of causing peatlands degradation was performed by increasing population; increasing poverty; win-win approach; security of land ownership; and agricultural infrastructure and expansion respectively. Understanding this cluster with a comprehensive approach is needed to decide what factors play in the degradation of peatland, so that the policies made are precise and targeted. At this time the government requires to restore peatlands, so that peatlands can be preserved forever
Rubber Industry Wastewater Treatment Using Sand Filter, Bentonite and Hybrid Membrane (UF-RO)
Get PDFThe study aims to utilize Hybrid Membrane Technology (UF-RO) in reducing turbidity, iron and zinc in the liquid waste of the rubber industry. The pre-treatment process used was filtration and adsorption. The filtration process used filter columns containing silica sand and activated carbon, while the adsorption process used an adsorbent column containing bentonite. After the pre-treatment process, it was continued with the application Hybrid Membrane (UF-RO). The variables of the study were operation time of 15 to 90 minutes and flow rates of 7 and 14 L/min. The results showed that the optimum removal percentage of iron and zinc in the Reverse Osmosis Membrane was 84.86% and 96.29% at the feed flow rate of 14 L/min. The optimum removal percentage turbidity of 99.70% was achieved at the feed flow rate of 7 L/min in the Reverse Osmosis Membrane. Finally, rubber industry wastewater treatment using Hybrid Membrane (UF-RO) was able to reduce turbidity, iron and zinc content, and the results were accordanced with the quality standards regarding Water Quality
Water and Land Productivity of Lettuce (Lactuca sativa) at Floating Pot on Wetland
No full textThe objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands. The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m3. The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m3.The objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands. The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m3. The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m3
Valuation of Provisioning Ecosystem Services Carat Cape Mangrove for Sungsang IV Village Community Banyuasin District
Get PDFMangrove ecosystem valuation can be used as a reference for decision making for management and conservation of mangrove ecosystems in a sustainable manner. The range of activities and interests conducted in coastal areas is not expected to negatively impact the ecology, economic and social. Carat Cape mangrove areas provide enormous benefits to the surrounding community, especially Sungsang IV village. From the results of the study illustrate the provosioning ecosystem service utilized community Sungsang IV village consists of materials construction (timber and nypa leaves), a source of livelihood or subsistance (nypa fruit, fish, shrimp, crab, and scallops). The total value of provosioning ecosystem services mangrove Carat Cape utilized by the Sungsang IV village Rp. Rp. 1.715.590.000, - per year dominated by income generated by marine species of fish which is the main livelihood of the fishermen Sungsang IV village reached Rp. 1.302.600.000,- per year
Yield Response And Water Productivity For Rice Growth With Several Irrigations Treatment In West Java
Get PDFAs the challenges toward increasing water for irrigation and water scarcity threats become more prevalent, knowledge of crop yield response to water can facilitate the development of irrigation strategies for improving agricultural productivity. Experiments were conducted to to compare water usage of several irrigation treatment on rice growth performance and productivity and its water use efficiency. These experiments were conducted using Situbagendit rice variety (115 day length periode), Urea and Tri Super Phospate fertilizer. Fertilizer dosage follows fertilizer recommendations for rice, i.e : Urea 250 kg/ha, SP-36 100 kg/ha and 100 kg KCl/ha. Irrigation started from land preparation. controll block (deep flooding) was flooded by a water height of 7 cm. Low level continues flow block was flooded by a water height of 3-5 cm. The volume of water used to saturate the soil of the saturated block was estimated. The number of days of non-flooded soil in AWD before irrigation is applied can vary from 1 day to more than 5 days. The results showed that total volume of water supplied during the rice growing period in the control block was 2,761.91 m3. Total water volume related to the low level continous flow irrigation block was about 1,217.03 and only about 638.98 m3 for the alternate wet and dry irrigation block. Total volume supplied for soil saturation treatment was about 549.74 m3. Regardless the performance of rice crop growth, it’s the most efficient treatment in terms of water use. It only required an amount of water around14-20 % of amount of water consumed by the continuous deep flooding treatment. The rice yield of deep flooding irrigation treatment was equivalent to 5.6 tons/ha of dry paddy while the yields of low level continuous flow irrigation,alternate wet and dry irrigation and soil saturation treatments reached 5,3 tons/ha,3.36 tons/ha and 2.80 tons/ ha respectivel
Effect of Strong El-Nino and Strong La-Nina Periode on Groundwater Availability in Palembang City
No full textEl-Nino results in reduced air mass in most parts of Indonesia and can cause drought. In the La-Nina phase some parts of Indonesia will get more water vapor resulting in increased frequency of rain. Increased rainfall has an impact on groundwater availability. Groundwater availability illustrates the condition of water in the soil which is useful in many sectors of life, especially in the agricultural sector. This study aims to see the relationship between the El Nino and La Nina phenomena strongly by using SOI indicators on groundwater availability in Palembang. In the Strong El-Nino phase in 1994 and 1997 the SOI index had a moderate correlation with groundwater availability of 32% and 39%. In 2015 the correlation of SOI to groundwater avability was 79% indicating a strong relationship. In 2008 and 2011 which was a strong La-Nina phase the SOI index correlation value for groundwater availability was 46% and 45%, respectively, which indicated a moderate correlation.
Connectivity index of infrastructural accessibility for disabilities in the city of Palembang
No full textAccessibility is a major component in the physical planning of an area. Good physical planning must include important components including facilities for persons with disabilities to be used by all people. The downtown area of Palembang is a strategic area of Palembang city that needs to be assessed on the connectivity index. The research object used is public facilities that are used as connectivity between buildings. This assessment was carried out aiming to determine the completeness of existing facilities and the feasibility of accessibility between buildings. The assessment is carried out by identifying existing facilities and to determine the level of completeness of the facilities through the scoring method. The connectivity index analysis was carried out based on these results to determine the feasibility of the facility and the feasibility of accessibility in the region. The results obtained from the connectivity index analysis are the level of accessibility between buildings. The level of accessibility is carried out classification based on the connectivity index to determine the feasibility of accessibility between buildings. Based on these results, there are four feasibility classifications in the central area of Palembang. Two roads are categorised as very feasible, five roads are decent, five road segments are less feasible and one road is not feasible
Morphometric Analysis for Evaluation of Environmental Change and Disaster Reduction of Flood
Get PDFOne indicator of environmental change due to climate change and human activities is changes in river flow and dynamics that can be seen on the visible scale and watershed. This study used geomorphic data which was an important factor for understanding natural processes that occur in efforts to reduced and managed flood risk. Changed in river morphometry would affect the characteristics of river flow, especially in watersheds that have meanders. Analysis was carried out on the Ogan River flow in the Ulak Pandan area and around by comparing flow changes in 1990 and 2016 as well as the used of land at the research site. The morphometry changes were analyzed by changing the width of the river and sinuosity parameters to evaluate the type of change that occurred. The results showed that there was an increase in the width of the river and the sinuosity index value at the same time it appeared that river meanders 5, 6 and 7 represented changes with the highest increase, whereas for land used to changed there was an increase in plantation land and agricultural land. This, indirectly by making changed to land use changed, the destruction of the natural vegetation of the river system results in degradation of river flow, especially in the outer meander arc
Green Technology Contribution in Development of Coolant Wastewater Filtration
Get PDFThe aim of this study is the contribution of green technology in the sustainable development of oily wastewater from machining process. The cross-flow membranes has been performed for treating wastewater emulsion of oil derived from the automotive industry on the metal cutting section. The objective of this study is to treat liquid waste from machining process using membrane technology. The mechanism of ultrafiltration process is flow of small molecules pass through pore of membrane. The performance of the cellulose acetate hydrophilic membrane is determined by the permeate and rejection flux. The operation of this two-stage ultrafiltration membrane involves a 12% composite cellulose acetate membrane (CA-12) in phase I and 15% (15%) cellulose acetate membrane (CA-15) in phase II with a 90 minute operating time with pressure of 3.5 bar. Flux of phase I, without pretreatment and with pretreatment are 17,03 L / m2.h and 59,05 L / m2.h respectively. In phase II, the flux of treatment without and with preteeatment are 22.08 L / m2.h and 24.86 L / m2.h , respectively. COD and surfactant rejection for both membrane without pretreatment of 96.57% and 96.35%, whereas for waste feed with COD rejection of 98.56% and surfactant rejection of 97.44 %
The Effect of Health Community Behavior (PHBS), Health Service Quality to Diare’s Disease in Sub-Division Karang Jaya Palembang Sub-District
Get PDFAbstractThe aims of this study were to analyze the Effect of Healthy Living Community Behavior (PHBS), Quality of Health Service against Overcoming Diarrhea Disease in Sub-division Karang Jaya Palembang. The type of research used in this study was analytical research. This research was conducted in Palembang City selected area of Karang Jaya Sub-district Gandus District. The study was conducted in May 2016 to June 2017. The samples of research were people affected by diarrhea in 2017 as many as 95 people. Method’s of data analysis using logistic regression. Result showed that the PHBS coefficient with odds ratio-0.760 (1.561-0.370) with significance of 0.045 less than the 0.05 significance level (α). This means that hypothesis one (H1) was accepted if the variable quality of health service, constant then every increase PHBS effect on the occurrence of diarrhea. The better PHBS will decrease the incidences of diarrhea. Coefficient of health service quality with odds ratio 1.598 (3.217-0.74) with significant equal to 0.009 less than level of significant (α) 0.05. This means that hypothesis two (H2) is accepted if the variable PHBS, constant then the quality of health services affect the occurrence of diarrhea. The better quality of health care will reduce the incidence of diarrhea Keywords: PHBS, quality of service, health, diarrhe