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Perencanaan Kolam Stabilisasi Untuk Penanganan Air Lindi (Leachate) Pada Calon Tempat Pembuangan Akhir (TPA) Kabupaten Mesuji Ismadi Raharjo; Suprapto Suprapto; Iskandar Zulkarnain
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 1 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i1.830

Land sites of Final Â Processing Disposal (TPA) Mesuji district has a relative flat Â topographicÂ with a 3,20 ha area, the extents of the allocation of land use is planned landfill Â areaÂ 2.60 ha and the remainingÂ 0.60 ha as Â area supporting infrastructure. Â From the analysis of the water balance inÂ landfill sites was obtainedÂ percolation 39 mm/month, with an area of landfill area of 2.60 ha planned then be generated leachate (leachate) that must be managed as much as 33.2 m3/day. Â Leachate treatment plan using stabilization pond method consisting of an anaerobic pond with Â a detention time Â of 12 days and an 398.40 m3 capacity will reduce pollutants leachate influent BOD around 1500 mg/lt be 288.46 mg/lt; Facultative pond with a detention time Â of 8 days and a capacity of 265.60 m3 pond will reduce pollutants leachate influent BOD 288.24 mg/lt be 79.51 mg/lt, andÂ Maturasipond Â with a detention Â of 10 days and a capacity of 322 m3 pond will reduce the material influent BOD of leachate pollutant 79.51 mg/lt be 16.86 mg/lt is further eligible to flow into water bodies (rivers).Â The texture of the soil conditions in the local area is clay, then structural stabilization pond construction recommended Â using reinforced concrete plate.Â Keywords: Leachate, BOD, Sstabilization Pond, Detention Time, Capacity Pond

Rancang Bangun Alat Penjernih Air Berbasis Masyarakat Pedesaan dengan Konsep Rucef (Re Use, Cheap, Easy And Flexible) Iskandar Zulkarnain; Ismadi Raharjo; Kelik Istanto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 3 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i3.850

These the water purification tools are designed based on household needs that carrying the concept RUCEP (Re Use, Cheap, Easy and Flexible). The purpose of this research were: 1). Designing a simple water purification technology which is inexpensive, and easy to applied for rural communities in terms of producing clean water; 2). DeterminingÂ the values changes of physical parameter which includes the TDS values, turbidity values and pH value, 3). Determining the value changes of bacteriological parameter such as content of Ecoli bacteria in water and total number of colieform. Based on the research, an average outlet dischargeÂ that produces water with clean visual quality is 1.964 liters/hour with a contact time of 1 hour 8 minutes. The measurement of TDS parameters showed that results for 6 hours, average of the TDS value is 154.33 ppm which is increased on average 17.81%Â from the initial TDS value 131 ppm. The result of turbidity measurements showed that for 6 hours, average turbidity value is 8.388 NTU which is improved on average 87.60% from the initial turbidity value about 67.67 NTU. The measurement of pH paramater showed the results that for 6 hours, average of pH is 7.85 which decreased from the initial pH of the raw water at 8.24. While the average temperature of the water from filtration is still relatively the same as the raw water is 27.18oC. The measurement of the Â Â E-Colie bacteria contents in samples of raw water and water filtration showed negative results for E-Colie bacteria contents, but the total of coliforms decreased from 14 mpn to 9.2 mpn or decreased about 34.286%.Â Keywords: technology, water purification, rural clean water

Evaluasi Penyebab Genangan Banjir Wilayah Perkotaan Pringsewu Berdasarkan Dimensi Saluran Drainase Eksisting Ismadi Raharjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 6 No 3 (2014)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v6i3.853

Subdistrict Pringsewu consisting of 13 villages are urban area that is now the capital of the district Pringsewu. For urban areas, sub Pringsewu require well drainage infrastructure. In fact, today, if heavy rains, there are several locations, especially in the national road (Jalan Ahmad Yani) and provincial road (Jalan KH Gholib) were flooding Â . This study aimed to evaluate the cause of the flooding in Â urban areas Pringsewu based on the dimensions of the existing drainage channel. The research was conducted from June to December 2013. The results of the observation pattern Pringgsewu flow direction in the region can be divided into two (2) primary drainage systems, Sidoarjo System and Way Semah System. Rate of region rain through Thiesen polygon from 3 (three) rain stations that are representative of the region and then analyzed using the method Log Person III and Gumbel with return period of 50 years gain Rainfall of maximum daily (RH max) of 110,81 mm/h. Maxiimal rain intensity (I max) with a return period of 50 years using the formula obtained Mononobe is 13,03 mm./h. Drainage coefficient value (C)Â Â is influenced by the use of land that is currently changing in urban areas Pringsewu, Sidoarjo system is expected to have a value of C=0,65, and for systems Way Semah estimated to have a value of C=0,45. With variable of I max and C as well as the value of the catchment area (A) which depends on each zone served by drainage channels, then by using the rational formula can be calculated discharge runoff that is expected to flow into the drainage channel at Q=CIA. From measurement of the existing dimensions of the drainage channel can be estimated the capacity of the channel, so as to evaluate the adequacy the drainage channel capacity to accommodate the runoff discharge in each zone. The results of these evaluations is only about 15,3% of channels in Sidoarjo system sufficient; whereas in the system Way Semah about 20%. For that in order to address the problem of flooding urban areas Pringsewu need immediate revitalization of existing drainage channel dimensions so that Â the channels have sufficient capacity to accommodate rainfall runoff discharge in each zone.Â Keywords: flooding, urban areas, capacity drainage channel, discharge run off

Studi Pengolahan Limbah Cair Industri Tahu dengan Media Biofiltrasi Zeolit Dedi Anwar; Disna Damayanti Wijaya; Ismadi Raharjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 7 No 1 (2015)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v7i1.872

The liquid waste is waste that most potential to pollute the environment. Most of the liquid waste originating from separate viscous liquid of clots in the manufacturing process and the filtration is called whey. Other sources of liquid waste from the process of manufacturing know. The amount of liquid waste generated by industrial manufacturing know is comparable to the use of water for processing. This study aims to determine the effect of detention time, the percentage of sludge to the concentration of COD, pH, TDS, NH3 and H2S from industrial wastewater carried out in aquarium biofiltration media testers with zeolite. Variable research operation is 12 days with 10% sludge and 14 days with 20% sludge. The results of this study, that the detention time effect on the concentration of COD reduction, TDS, NH3, H2S and pH rise. More significant decline occurred during the time of stay of 14 days with the provision of sludge by 20% with a total decline of COD 45,5 mg/liter/day, the results are consistent effluent quality standard PP No. 82 of 2001 with a threshold of 50 ppm, and 59,8 mg TDS/liter day, and for the TDS of 1000 ppm. Handling after a stay in the aquarium is the process of aeration for 2 days and 5 days with aerator power of 2,5 liters/sec to lower concentrations of NH3 and H2S. From the analysis that has been done, the concentration of H2S after aeration diving 5 days, 525 mg/lt. Based on these results indicate reduction of H2S ineligible waste water effluent quality standards. While the concentration of NH3 qualify allocated for â€œwater class IIIâ€. NH3 concentration after aeration for 5 days is 0,2 ppm.Â Keywords: biofilters, zeolite, detention time

Redesain Sistem Penyediaan Air Minum (SPAM) Pedesaan di Desa Wiyono Kabupaten Pesawaran Andre Velthuzend; Arif Dwi Prajasena; Suprapto Suprapto; Ismadi Raharjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 7 No 1 (2015)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v7i1.875

In general, the construction of rural water supply system is made to the design and construction materials are inadequate, so as to have a short lifespan opration with a fairly high level of leakage as happened in the village Wiyono, Gedongtataan, Pesawaran District. The purpose of this study was to redesign the Water Supply SystemÂ that already exist in the village Wiyono. The method used is the discharge measurements, measurements of topography, socio-economic surveys, calculation of water needs and budget plan (RAB), while the analysis of pressure and loss of water use Epanet program. Re-planning of water supply is done by counting the number of villagers until 2039 with the geometric method that is numbered 3,161 inhabitants. Discharge of water needed is 11,8 liters/sec, and a debit available on spring Wiyono of 55 liters/sec it is still insufficient to discharge water needs until the year 2039. The results of the measurement of topographic maps obtained height difference between springs with the service area is 113 m above sea level, then the drinking water distribution system uses gravity drainage system. EPANET hydraulic analysis results using the highest pressure is 47,05 and the lowest pressure that is 0,04 so that type of pipe used is PVC pipe with a diameter of between 26-140 mm in length of 5,090 meters. To reduce water turbidity due to changes in the level of turbidity then made slow sand filter basin with a length of 9.5 meters, a width of 4 meters and a height of 2,7 meters. Based on the results of the calculation of the Draft Budget (RAB) The investment needed is Rp. 1,060,000,000.00 with a 25-year life of the project, the obtained prices per m3 of clean water in Hamlet IV Sumberejo Rp. 700,00/m3. Keywords: rural water supply system, gravity system, hydraulic analysis, the price of water

Pola Rencana Penanganan Air Limbah Domestik Pemukiman Kumuh Perkotaan di Kabupaten Lampung Utara Ismadi Raharjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 7 No 2 (2015)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v7i2.886

Urban Slum in North Lampung District according to a decree contained in 14 locations located in 4 Districts. Among the 14 locations there are 10 locations of slum on the edge of the river (inhabited by about 700 families) in North Lampung district estimated directly discharge wastewater into rivers results of their activities (times) Uban and Rarem Way. This may give a negative impact on the aquatic environment in the two rivers for daily flow of waste water flow rate of about 35,000 liters with a load of BOD (Biologycal Oxygen Demand) approximately 18.76 kg. It is necessary for the direction of domestic waste water treatment patterns construct Waste Treatment Plant (WWTP) for communal housing residents around the two rivers. Each communal WWTP will serve five families or about 25 residents of the dwelling. In consideration of the position of residential location, the communal formed on communal distinguished which is right by the river and the communal were about 25-50 m from the river. In the treatment of domestic waste water in communal needs to be established septic tank to treat sewerage of toilets (WC) is equipped with a biofilter combination of anaerobic-aerobic (to treat black water processed from the sewage and gray water from waste water non toilet) with a capacity of 2000 liters of water of waste per day, the residence time of about 1.69 days, and the ability of polluters BOD allowance of about 80%. WWTP construction standards biofilter used is concrete construction size: effective length of 225 cm, 100 cm effective width, volume cavity biofilter media types bioball 0.70 m3, and equipped with hiblow 40 liters / minute andÂ circulation pump of 24 watts for the aerobic process.Â Keywords: domestic waste water, slums, WWTP biofilter communal

Perencanaan Sistem Penyediaan Air Minum (SPAM) Pedesaan Dusun IV Desa Sumberejo Kabupaten Tanggamus Dwi May Juwita; Repinka Cornelia; Aqmal Satrio Dirgantara; Suprapto Suprapto; Ismadi Raharjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 6 No 2 (2014)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v6i2.890

Fresh water is a basic need for human, so is Â to be normal if the water sector gets priority in the handling and fulfillment. The springs are located in DusunÂ Sumberejo IV should be able to meet the water needs of the local community. The purpose of this study was: (1) identify potential sources of raw water (water) in Dususn Sumberejo IV, (2) calculate the number of people that will be served as well as the need for clean water, (3) designing the layout and capacity of the reservoir, (4) determine the appropriate piping standards for Rural Fresh Water Supply System (SPAM), and (5) predict the draft budget piping. The method used is the discharge measurements, measurements of topography, socio-economic survey, the calculation of water requirements, head loss effective calculation and Budget Plan (RAB), whereas for hidraulic analysis using Epanet program. Results of fresh water supply planning is done for rural population projections to 2020 the number of 491 people, need for fresh water in the Dusun Sumberejo IV 0.32 liters/sec, discharge available in the spring Sumberejo is 0.35 liters/second then the discharge is still sufficient for the water needs until the year 2020. From the measurement results obtained topographic maps + 50.42 m height difference by elevation above sea level on the Bench Mark (a point of reference, the location of the source of raw water springs) + 446 m above sea level and at the end point measurement (area of service farthest) +399.57 m above sea level, so the system can distribuasi to the service area using gravity. The results of the hydraulic analysis using EPANET used PVC pipes with various diameters ranging from 12.5 to 50 mm with a length of 4876 meters and its accessories (accessories). Based on these forecasts Rural SPAM development requires an investment of around Rp. 89,000,000.00, then the system when the service is expected to last for 25 years as well as in the development of investment in the form of loans with mortgage interest (soft loans) amounted to 6% of the obtained water price per m3 in Dususn IV Sumberejo IV Â around Rp. 1450.00/m3. Keywords: rural SPAM, gravitasi system EPANET

Pengaruh Curah Hujan terhadap Kualitas Air Sungai Way Kuripan sebagai Sumber Air Baku Perusahaan Daerah Air Minum (PDAM) Way Rilau Ismadi Raharjo; Iskandar Zulkarnain; Suprapto Suprapto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 2 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i2.894

So far almost 30% Â people need clean water of urban city in Bandar Lampung supplied by PDAM Way Rilau. There are about 12 sources of raw water consisting of surface water , ground water, and springs are treated by PDAM Way Rilau. One sourceÂ of raw water is surface water from Way Kuripan processed in "Water Treament Plant (WTP I and WTP II). Therefore,as a surface water, the source of raw water from Way Kuripan is always influenced by external conditions, especially rainfall this study was conducted in early 2013 to take on secondary data consisting of raw water quality parameters: turbidity, degree of acidity (pH), total hardness , dissolved content of Cl, SO 4, KMnO 4, Ca, and Mg are derived from the "PDAM Raw Water analysis Report" for the year 2012; While rainfall data taken from Lampung State Polytechnic Climatology Station which includes parameters: Number of Monthly rainfall , Number of Days Rain, and Rain Maximum every month. Raw water quality parameters of river Way Kuripan highly influenced by rainfall is turbidity, in addition to the content of sulfate and dissolved clorida. In the year 2012 recorded the highest raw water turbidity of 79.1 NTU in December with the condition number of monthly rainfall 354.2 mm, 22 days rainfall, and the maximum daily rainfall of 57.0 mm. However, all of the raw water parameters recorded in the year 2012 is still below the threshold of water-based Group B RegulationÂ in PP No 82 TahunÂ 2001.Â Because of the quality of raw water from the Way Kuripan strongly influenced by rainfall, especially for turbidity parameters, it is necessary to increase the dose of coagulant is more during the rainy season from December to April.Â Keywords: raw water, rainfall, water quality, turbidity

Kombinasi Proses Presipitasi dan Adsorpsi untuk Menangani Limbah Bahan Berbahaya Beracun (B3) Hasil Kegiatan Analisis di Laboratorium Analisis Polinela Ismadi Raharjo; Didik Kuswadi
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 2 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i2.1896

The objectives of this research to determine the combination of the process of precipitation and adsorption in reducing the content of pollutant metals in the hazardous waste category B3 (hazardous toxic substances) produced at the Polinela Analysis Laboratory. The study was conducted in May to November 2019. The results obtained from 3 (three) times of sampling in May 2019 obtained a description of the characteristics of heavy metal content in wastewater in the form of Aluminum (Al) an average of 1.59 ppm, iron content ( Fe) an average of 9.73 ppm and Cadmium (Cd) an average of 0.022 ppm. From these results it can be seen that the wastewater containing Al and Fe has passed the threshold quality standard of waste water that is allowed to be discharged into water resource (PP No.82 of 2001), while the Cd content is still below the threshold. Furthermore, through the precipitation process with Ca (OH)2 0.8 M and adsorption using activated charcoal with contact time of 3 (three) hours the content of pollutants in wastewater can be reduced to 0.92 ppm for Al metals and 0.1 ppm for metals Fe, so that it is below the standard quality of waste water that is allowed to drain in water. Keywords: adsorption, precipitation, quality standard

EFEKTIFITAS PRODUKSI SAWI CAISIM PADA BERBAGAI MEDIA TANAM Sekar Dwi Rizki; Ismadi Raharjo; Vera Chania Putri
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 33 No 2 (2023): Jurnal Agroteksos Agustus 2023
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v33i2.861

ABSTRACT Caisim plants or mustard greens are plants with high nutritional content, used as ingredients for consumpting vegetables and medicines. The Consumption of caisim plants in Indonesia is quite large and evenly distributed throughout the region. This research aims to obtain a good planting media for development of caisim production. The planting media used in this study were soil, cocopeat, husk charcoal, and sand. Planting media was used to represent soil conditions in Indonesia. The research was carried out by planting caisim plants in polybags with drip irrigation systems and measurements on the 10th, 17th, 24th, and 31st days. The planting medium responds to the growth of caisim plants where the variable height of the planting media which influences the most sequentially is soil, cocopeat, husk charcoal, and sand. For the variable number of leaves in the planting medium it has no effect, but on the growth of leaf width and visually on the soil and cocopeat planting media the leaves grow wide and healthy, the rice husk charcoal planting medium is healthy but small, while the leaves on the sand planting medium tend to be small and wrinkled. This is due to the ability of the planting media to store nutrients and supply caisim plants. Increasing the effectiveness of caisim production at the household scale takes into account the factors of cropping patterns, narrow land use, and provision of irrigation water.

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