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Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

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ISSN : 1907817X EISSN : 25500023 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Articles 600 Documents

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The Ability of Dissolved Oxygen and Biochemical Oxygen Demand Parameters to Self-purify in the Garang River Junaidi Junaidi; Ika Bagus Priyambada; Nindya Venoreza
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

Garang River is administratively located in Semarang Regency, Kendal Regency, and Semarang City. Population growth and the number of community activities around the river can affect the water quality of the Garang River. Wastewater discharged into the Garang River will reduce water quality. The number of pollutants that enter the river changes the quality of river water until it reaches a pollutant level that exceeds the quality standard. The purpose of this study was to determine the self-purification ability of the Garang River using the Streeter-Phelps method based on DO and BOD parameters to obtain an oxygen sag curve for oxygen reduction. There are 3 monitoring stations that are located in the upstream segment of the Garang River. The value of the deoxygenation constant (K) in segment 1 is around 0.340, the reaeration constant (R) is 3.433, and the value of fs = 10.103. While in segment 2. the value of K is 0.335, R is 3.417, and fs is 10.194. It is revealed that segment 1 and segment 2 of the Garang River have not yet experienced optimal natural purification because they are still in the degradation zone.

Using Kamishibai Media in Thematic Learning to Increase Students' Knowledge of Environmental Education Indriyani Rachman; Wati Rohmawatiningsih; Kodama Yayoi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

Global environmental damage emphasizes the importance of environmental education at schools. It is a tool for achieving sustainable development. Environmental education (EE) is integrated into several core subjects in the Indonesian primary school curriculum as a thematic learning. For the teachers, it is essential to be aware of planning and designing appropriate learning methods based on the physical, emotional, and cognitive stages primary students. Kamishibai seems suitable for EE learning at primary school. It can help students to understand EE content. The aim of this study was to analyze using Kamishibai in thematic learning to increase the students' knowledge of EE. The method used in this study was pre-experiment with the research design of the one-group pretest-posttest design. Nine 5th grade students participated in the study. To determine the students’ knowledge of EE, a test was administered before and after the Kamishibai implementation. As a result of the analysis, it was found that, after the implementation, the students’ knowledge of EE was higher than before implementation. The result also showed the students’ ability in retelling the story at the end of the Kamishibai implementation. These indicated that Kamishibai strengthened students' memory. In conclusion, Kamishibai increased students' knowledge of EE.

Implementation of Environmental Health Services (Sanitation Clinic) in Public Health Centers Indonesia Intan Sekar Arumdani; Indah Sekar Arumdani; Alifia Intan Berlian
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

The Indonesian government has implemented clinical sanitation to improve a healthier environment and reduce mortality from environmental-based diseases. This effort is carried out to reduce the incidence of environmental-based diseases such as diarrhea and Acute Respiratory Infections (ARI). However, in 2017 the number of ARI sufferers in one of the provinces in Indonesia reached 45.38%, while diarrhea reached 28.3%. The diarrhea mortality rate increased to 4.76% in 2018, while the prevalence of ARI reached 9.1%. Therefore, this article aims to examine the performance of the sanitation clinic program at the Indonesian Health Center. The review method used is the narrative. Total percentage of 78.33% for the category of public health centers that have carried out the stages of sanitation clinics starting from the counselling stage to the intervention stage following established regulations. This percentage is still low because it has not received a 100% score. The implementation of the program has not been supported by adequate counselling media. In addition, the Public Health Center does not yet have a counselling room, and there is still a shortage of operational funds. Monitoring and evaluation need to be carried out to improve the service performance of the sanitation clinic program.

Rainwater Harvesting Planning using Infiltration Wells in Amlapura City Karangasem Regency Mawiti Infantri Yekti; Mecris Mides Yumame; Kadek Diana Harmayani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

Amplapura is located in the highlands having a potential area of green open land which can absorb rainwater freely into the ground. However, in recent times, land conversion has begun to develop with new housing buildings, Griya Galiran Regency Housing. Furthermore, the effectiveness of the land area is still able to absorb water and maintain groundwater balance. A rainwater harvesting plan (RH) is needed, or, more popularly, rainwater harvesting. In this area. The aim is to provide a portion of residential land space for rainwater infiltration into the pores or soil cavities using the infiltration well method. The results showed that the Griya Galiran Regency Housing had an acceptable sand soil type and absorbed soil quickly, with a soil permeability coefficient (k) of 0.0014 cm/s. Designing the dimensions of the infiltration well at the Griya Galiran Regency Housing with an area of 70 m2 based on SNI 03-2453-2002 for a circular cross-section, an infiltration well with a diameter of 1.2 m with a depth of 2 m is made. In contrast, as a rectangular cross-section, an infiltration well has a side length of 1 m with a depth of 2 m.

Electrocoagulation Method Using Al/Graphite Electrode for Removal Surfactant LAS (Linear Alkylbenzene Sulfonate) Nafisa Khairunisa; Suhartana Suhartana; Damar Nurwahyu Bima
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

An increasing number of laundries have caused water contamination by surfactants. One commonly used surfactant is LAS (Linear Alkylbenzene Sulfonate), a material difficult to decompose, polluting the environment. Electrocoagulation was carried out using Al/Graphite electrode, applied to LAS surfactant artistic waste. This study aims to determine the functional ability of the Al/Graphite electrode in reducing surfactant through electrocoagulation. Various variations were carried out, on the voltage parameters (3,6,9,12) Volt; NaCl concentration (0;0.4;0.8;1.2;1.6;2) g/L; pH (3,5,7,9,11) and time (10,20,30,40,50) minutes. To analyze the changes in the sample before and after electrocoagulation, characterization was carried out using a UV-VIS spectrophotometer and FTIR. A kinetic study was conducted to determine the reaction order of electrocoagulation surfactant. Based on a study, removal at condition voltage 9 Volt, initial pH of the solution 9, electrocoagulation time 50 minute, and the addition of NaCl electrolyte 2 g/L, obtained surfactant concentration was 0,785 mg/L with removal efficiency 97,45%. UV-VIS spectra show a decreased absorption at a wavelength of 653 nm. FTIR spectra showed the presence of absorption on the same functional groups, which indicated that most of the surfactant pollutants could be separated from the wastewater through the electrocoagulation process. The second-order reaction was obtained in the surfactant electrocoagulation process.

Jatiluhur Reservoir Water Quality Analysis at Various Depths Eka Wardhani; Zulfah Ananda Sugiarti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

The Jatiluhur Reservoir is an important building in West Java Province whose dams the Citarum River. The location of the Jatiluhur Reservoir, which is the most downstream of the Saguling and Cirata Reservoirs, is where domestic, industrial, and agricultural wastewater pollution is accommodated from water catchment areas so that water quality decreases. This study aims to analyze the water quality in this reservoir at various depths. The study was conducted in September 2020 at 16 sampling points at a depth of 0-8 meters. The water quality parameters analyzed were Temperature, Dissolved Residue (TDS), pH, Dissolved Oxygen (DO), Fluoride (F-), Nitrate (NO3-N), Sulfate (SO42-), BOD5, COD, and Escherichia coli. Based on the study results, it was found that the concentrations of DO, BOD5 and COD at the monitoring location of the Jatiluhur Reservoir did not meet the quality standards. The concentrations of DO, BOD5 and COD respectively 1.00-3.99 mg/L; 3.10-17.00 mg/L; and 28.00-59.00 mg/L. These three parameters contribute to the decline in water quality. The status of water quality using the IP method is categorized as lightly polluted so that it affects the utilization of this reservoir, especially as raw water for drinking water. The highest level of contamination was at the floating net cages sampling location at a depth of 8 m. The decline in water quality in the Jatiluhur Reservoir is caused by organic substances originating from floating net cages waste.

Land Use Changes Impact Analysis to Surface Runoff in Kalibenda Village Choirul Basyar; Muhammad Arief Budihardjo; Budi Prasetyo Samadikun
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

The rainwater that reaches the ground will enters the soil (infiltration) and some water are not absorbed by the soil will become surface runoff. The regional development tends to change water catchment areas by changing land functions and affecting surface runoff. The regional development in Kalibenda Village has cause problems related to the local community water supply. In 2019 some of the local community in Kalibenda Village have experienced difficulties in accessing clean water supply which has never happened in the past . This study provides an analyze of the impact of land use changes that occur in Kalibenda Village on surface runoff. This study uses a Rational method to calculating runoff discharge by using elevation profile analysis tool from Google Earth program to calculated sloop, Approb_4.1 program to process rain data and ArcSwat Tools in the ArcMap 10.2 program to water catchment analysis. The study results shows that Kalibenda Village divided into 6 (six) catchment water. There has been increased runoff from 2000 to 2021 by 6.44%. The most influential factors are changes in land cover change from rice fields to settlements, plantations and meadow grass.

Fecal Sludge Management in Developing Countries: Developing Countries Comparison Nadia Paramita; Raldi Hendrotoro Seputro Koestoer
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

Several factors that influence the achievement of the sustainability of an MSS management system are identified. This study aims to determine what aspects of sustainability affect a system's municipal wastewater sludge management to run appropriately using conventional technology. The method used in this research is a comparative approach. The study compares urban domestic wastewater focusing on fecal sludge management (FSM) in Egypt and Indonesia. It is known that the sustainability factor of wastewater management systems includes economic, social, environmental, and technological factors. In Indonesia, institutional, which is also included in the social aspect, becomes the most significant limitation to implement the appropriate FSM. The best technology chosen for Egypt is anaerobic digestion, while in Indonesia, the right technology chosen is sludge drying bed (SDB) and also the combination of solid separation chamber (SSC) with draining area (DA). From an economic point of view, the 2 sub-factors that influence the sustainability system are investment cost and operation and maintenance cost. Regarding socio-culture, the awareness and participation of the community and the private sector needs to be increased to achieve the sustainability of sludge management services in both countries

Optimization of Enzymatic Bioremediation of Oil Contaminated Soil by Laccase from Marasmiellus palmovorus using Response Surface Methodology Agus Jatnika Effendi; Sri Harjati Suhardi; Yollanda Chekti Kirana Arun Surya Widi; Khomaini Hasan; Dion Awfa; Rendana Saputra
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

Crude oil contamination is considered highly toxic and poses a significant environmental problem. As an alternative, the laccase enzyme showed high performance for removing various toxic contaminants, particularly oil-contaminated soil (i.e., total petroleum hydrocarbon). However, previous studies mainly tested the performance of laccase under irrelevant environmental conditions (i.e., artificially contaminated soil) with a limited number of soil samples, which can lead to bias optimization results for assessing laccase performance. Two types of natural oil-contaminated soils were tested under various reaction times and various concentrations of laccase extracted from Marasmiellus palmovorus. In addition, response surface methodology was used to find the maximum degradation of total petroleum hydrocarbon (TPH). The maximum degradation of TPH from soil A and soil B were 48.57% and 54.1%, respectively. Moreover, the performance of the laccase enzyme for oil recovery was also tested, with the percentage of oil recovery being 9.89% and 10.1 % for soil A and soil B, respectively. SARA fraction analysis indicated that laccase enzyme preferentially degraded highly polar SARA fraction (i.e., asphaltene and resin). In general, the application of laccase for the enzymatic remediation of oil-contaminated soils was practical. Hence, the use of laccase for environmental application is still promising.

Treatment of Domestic Wastewater with Combination of Phytoremediation and Filtration Using Activated Carbon of Tea Dregs Nisa Nurhidayanti; Dodit Ardiatma; Jamaludin Tasdik
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

One source of water pollution comes from domestic wastewater as a result of daily human activities. As one of the work units in the field of education, the university also produces domestic liquid waste that needs to be processed so as not to pollute the environment. The use of the phytoremediation method with water jasmine and water hyacinth combined with the use of tea dregss as an activated carbon filter is one method that can be used to treat domestic greywater wastewater. The purpose of this study was to determine the efficiency of reducing levels of COD, BOD, TSS, NH3, and turbidity in domestic greywater waste at Pelita Bangsa University by phytoremediation methods using water jasmine plants and water hyacinth plants with a combination of filters from tea dregss. The research procedure starts by making activated carbon from tea dregss, characterizing activated carbon with SEM, sampling greywater wastewater, characterizing wastewater test, plant acclimatization, range-finding test, phytoreactor test with activated carbon filter, and data analysis. The phytoremediation method with a combination of filtration using tea dregss activated carbon produces an efficiency of 99.61% COD reduction, 100% BOD, 98.68% TSS, 100% ammonia, and 97.50% turbidity.

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