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Firman Laili Sahwan
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Environmental Science

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EFEKTIVITAS PENGKOMPOSAN SAMPAH KOTA DENGAN MENGGUNAKAN “KOMPOSTER” SKALA RUMAH TANGGA Sahwan, Firman Laili
Jurnal Teknologi Lingkungan Vol. 5 No. 2 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (126.715 KB) | DOI: 10.29122/jtl.v5i2.309

Abstract

Composting as one of efforts to overcome municipal solid waste problem has enough potency because 70-80 % of municipal solid waste is organic material, mostly can be processed to compost. Composting in source of waste (household) will be more effective because is easier (small scale) and cheaps (transport is not necessary). Composting can be done by using composter. Research result showing that composter is easy to be made, easy to be applied in our society and effective enough to use in producing municipal waste compost. The compost processing time is 49 days and producing the good quality of compost.
Purifikasi Gas Metana (CH4) dari TPA Sampah Menggunakan Metode Water Scrubber Sahwan, Firman Laili; Wahyono, Sri; Suryanto, Feddy; Hanif, Muhammad
Jurnal Teknologi Lingkungan Vol. 20 No. 2 (2019)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.394 KB) | DOI: 10.29122/jtl.v20i2.3260

Abstract

ABSTRACTHigh population growth rate has stimulated the increase of energy consumption. Therefore, the use of renewable energy sources such as methane gas from landfill has also been encouraged. It is necessary that landfill methane gas is purified to increase its concentration. Common method to purify methane gas is water scrubber method. The aim of this research was to evaluate the effectiveness of landfill methane gas purification using a spray water scrubber (water scrubber method), a water column scrubber (bubbling methods) and the combination of both methods to increase the content of landfill methane. The experiment was conducted in the dry season and rainy season. Results of the study concluded that water scrubber was the most effective method for increasing methane gas concentration. The average increase of methane gas in the dry season were 33.32% (water scrubber) and 23.79% (combination of bubbling and water scrubber), and in the rainy season 8.89% (water bubbling) and 2.75% (combination of water scrubber and water bubbling). The increase in methane gas was due to a decrease in CO2 gas. In addition, there was an increase of H2O content in biogas from landfill after the purification process.Keywords: Landfill, methane gas, purification, water scrubberABSTRAKTingginya laju pertumbuhan penduduk telah memacu konsumsi energi yang terus meningkat. Oleh karena itu diperlukan upaya pemanfaatan sumber energi terbarukan, yang salah satunya adalah gas metana yang berasal dari TPA sampah. Keinginan untuk meningkatkan kandungan gas metana TPA diperlukan upaya purifikasi, menggunakan metode water scrubber. Penelitian ini dilakukan dengan tujuan mengetahui efektivitas purifikasi gas metana TPA dengan menggunakan metode pengaliran gas dalam percikan air (water scrubber) dan metode pengaliran gas dalam air atau water bubbling (serta kombinasi keduanya) untuk meningkatkan kandungan gas metana TPA, yang dilakukan pada musim kemarau dan musim penghujan. Hasil penelitian menyimpulkan bahwa water scrubber merupakan metoda yang paling efektif untuk meningkatkan kandungan gas metana. Rata-rata peningkatan gas metana pada musim kemarau dan musim penghujan, berturut-turut sebesar 33,32% (water scrubber), 23,79 (kombinasi water bubbling dan water scrubber), 8,89% (water bubbling) dan 2,75% (kombinasi water scrubber dan water bubbling). Peningkatan gas metana tersebut terjadi karena adanya penurunan gas CO2. Selain itu, terjadi peningkatan kandungan H2O pada biogas dari TPA setelah proses purifikasi.Kata kunci: TPA, gas metana, purifikasi, water scrubber.
EVALUASI PROSES PRODUKSI PUPUK ORGANIK GRANUL (POG) YANG DIPERKAYA DENGAN MIKROBA FUNGSIONAL Sahwan, Firman Laili; Wahyono, Sri; Suryanto, Feddy
Jurnal Teknologi Lingkungan Vol. 12 No. 1 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.211 KB) | DOI: 10.29122/jtl.v12i1.1257

Abstract

Organic Fertilizer in the form of Granule Organic Fertilizer (POG), which is enrichedwith functional microbes, has been produced in great quantities nowdays, because it isexpected to improve the physical, chemical, and biological properties of soil at once. Thecondition of land degradation that has become a big concern, in spite of the low organicmatter in the lands, more encourage the increasing of POG production to be applied verysoon into agricultural lands in Indonesia. However, how is the conditions of the POGplant, what kind of raw material that will be used and how does the production processitself run, would be very excited to be analysis in order to develop the future of POGplant. Results showed that the POG plant conditions generally contains of the facilitiesand infrastructure that support the physical/ mechanical process, that is not passed thebiological process first which is known as composting process. The raw materials thathas been used could not maximize organic materials potentials that exist and only relyon animal waste and sugarcane waste (blotong) from sugar mills, as the main mostlyused raw material. While the common POG manufacturing process consist of the mixingof the raw materials, granulation process, drying, cooling, screening, enrichment withfunctional microbes and packaging.
STRATEGI PENGELOLAAN SAMPAH DI KAWASAN KEPULAUAN SERIBU Sahwan, Firman Laili
Jurnal Teknologi Lingkungan Vol. 5 No. 1 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.237 KB) | DOI: 10.29122/jtl.v5i1.292

Abstract

The district of Kepulauan Seribu consists of 110 islands which cover 6.997 km2 area in Teluk Jakarta. The local government relises that for supporting their sustainable development need a good environmental management such as solid waste management and treatment. The clean beach and settlement are very important for developing tourism and mariculture. Kepulauan Seribu has to set up the profesional integrated solid waste management that carried out by all the stakeholders. The clean island is investment for Kepulauan Seribu for attracting investor, economic actor and tourists.
SISTEM PENGELOLAAN LIMBAH PLASTIK DI INDONESIA Sahwan, Firman Laili
Jurnal Teknologi Lingkungan Vol. 6 No. 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.993 KB) | DOI: 10.29122/jtl.v6i1.330

Abstract

Plastic recycling activities has been done by nonformal institutions since along time ago especilaly in some big cities in Indonesia. The amount of plastic waste is about 10% to 15% of municipal soild waste. Plastic recycling activities has twoadvantages: (1) reducing the potential damage of environment caused by pollution, and (2) creating the job opportunity for people.
EVALUASI POPULASI MIKROBA FUNGSIONAL PADA PUPUK ORGANIK KOMPOS (POK) MURNI DAN PUPUK ORGANIK GRANUL (POG) YANG DIPERKAYA DENGAN PUPUK HAYATI Sahwan, Firman Laili; Wahyono, Sri; Suryanto, Feddy
Jurnal Teknologi Lingkungan Vol. 12 No. 2 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.551 KB) | DOI: 10.29122/jtl.v12i2.1250

Abstract

Organic fertilizer is a fertilizer that is expected to improve the physical, chemical, and biological properties of the agricultural land resources, which is undergoing fertilityand productivity degradation. Compost is one of the organic fertilizers produced from the biological decomposition process by a consortium of microorganisms, includingfunctional microorganisms. To make it easier for farmers and efficiency in the use of organic fertilizer, organic fertilizer will be further processed into granular form and is called Granules Organic Fertilizer (POG). In the manufacturing process, namely at the time of drying using a rotary dryer, was suspected of using high temperatures to kill microbes (including functional microbial) that naturally exist in the organic compost fertilizer (POK), which is the raw material for POG. To increase the presence of functional microbial populations, the POG which has produced before, then added with bio fertilizer that is rich in microbial functional. This research was conducted to determine and evaluate the total microbial population and functional microbial in pure POK, compared with the total microbial population and functional microbial in the POG are enriched with bio-fertilizer. The results showed: There is an indication to the higher number of total microbial population in the POK, who showed by total fungi population, compared with the POG. The number of functional microbial population, as shown by bacterial phosphate solvent and non-symbiotic bacteria that are fastening N in POK, very high and already meets the criteria to be called as a biological fertilizer. The amount is not significantly different compared to the POG that is already enriched with bio fertilizer that is rich in microbial functional. There is an indication of the influence of high heating using a rotary dryer, in the POG manufacturing process against the decreasing of the amount of microbialpopulation that are resulting in the POG, including functional microbial
Studi Karakterisasi Sampah Landfill dan Potensi Pemanfaatannya (Studi Kasus di TPA Sukawinatan dan Bantargebang) Wahyono, Sri; Sahwan, Firman Laili; Suryanto, Feddy; Febriyanto, Irhan; Nugroho, Rudi; Hanif, Muhammad
Jurnal Teknologi Lingkungan Vol. 20 No. 2 (2019)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.738 KB) | DOI: 10.29122/jtl.v20i2.3335

Abstract

ABSTRACTLandfills contain materials that can be recovered to be recycled or used as an energy source. The purpose of this study is to conduct waste characterization that has long been buried in landfill which includes analysis of composition, proximate analysis, and ultimate analysis. Then the waste is analyzed for its use as recycled material and energy sources. The study was conducted at the Sukawinatan landfill (Palembang) and the Bantargebang landfill (Bekasi). Sampling was carried out on garbage that had been buried in landfills by digging at depths of up to 5 m using an excavator. Furthermore, the samples are dried in the sun, sifted with rotary screen, and sorted manually. Some samples were taken by quartering to be analyzed in the laboratory. The results of the research and analysis showed that (i) landfill waste was dominated by compost material (31-47%) and plastic combustible material (32-43%) and nonplastic combustible material (32-43%); (ii) shaped material such as compost has the potential as a substitute for landfill cover and as soil conditioner; (iii) potentially recycled materials such as plastic waste need intensive sorting and cleaning; (iv) landfills excavated waste can be potentially used as an energy source or refuse-derifed fuels (RDF) with a heating value between 7.31-15.61 MJ / kg; (v) landfills excavated waste has the potential to be used as fuel for incinerators; (vi) utilization of landfill waste for the cement industry still faces several obstacles such as high chlorine content and water content.Keywords: landfill, waste characterization, composition, proximate, ultimate ABSTRAKTPA mengandung material yang dapat diambil untuk didaur ulang atau dimanfaatkan sebagai sumber energi. Tujuan dari penelitian ini adalah untuk melakukan karakterisasi sampah yang telah lama tertimbun di TPA yang  meliputi analisis komposisi, analisis proksimat, dan analisis ultimat. Kemudian sampah tersebut dilakukan analisis pemanfaatannya sebagai bahan daur ulang dan sumber energi. Penelitian dilakukan di TPA Sukawinatan (Palembang) dan di TPA Bantargebang (Bekasi). Pengambilan sampel dilakukan terhadap sampah yang sudah tertimbun di landfill dengan cara menggali pada kedalaman hingga 5 m menggunakan excavator. Selanjutnya sampel dijemur, diayak dengan penyaring berputar (rotary screen), dan dipilah secara manual. Sebagian  sampel diambil dengan metode perempatan (quartering) untuk kemudian dianalisa di laboratorium. Hasil dari penelitian dan analisisnya memperlihatkan bahwa (i) sampah galian TPA didominasi oleh material kompos (31-47%) dan material combustible plastik (32-43%) serta combustible nonplastik (32-43%); (ii) material berbentuk seperti kompos memiliki potensi sebagai pengganti soil cover TPA dan sebagai material pembenah tanah (soil conditioner); (iii) material yang potensial didaur ulang seperti sampah plastik perlu pemilahan dan pembersihan yang intensif; (iv) sampah galian TPA potensial dimanfaatkan sebagai sumber energi atau RDF (refuse-derifed fuels) dengan nilai kalor antara 7,31-15,61 MJ/kg; (v) sampah galian TPA berpotensi digunakan sebagai bahan bakar insinerator PLTSa; (vi) pemanfaatan sampah galian TPA untuk industri semen masih menghadapi beberapa kendala seperti tingginya kandungan klorin dan kadar air.Kata kunci: landfill, karakterisasi sampah, komposisi, proksimat, ultimat
STRATEGI PENGELOLAAN SAMPAH DI KAWASAN KEPULAUAN SERIBU Firman Laili Sahwan
Jurnal Teknologi Lingkungan Vol. 5 No. 1 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.237 KB) | DOI: 10.29122/jtl.v5i1.292

Abstract

The district of Kepulauan Seribu consists of 110 islands which cover 6.997 km2 area in Teluk Jakarta. The local government relises that for supporting their sustainable development need a good environmental management such as solid waste management and treatment. The clean beach and settlement are very important for developing tourism and mariculture. Kepulauan Seribu has to set up the profesional integrated solid waste management that carried out by all the stakeholders. The clean island is investment for Kepulauan Seribu for attracting investor, economic actor and tourists.
EFEKTIVITAS PENGKOMPOSAN SAMPAH KOTA DENGAN MENGGUNAKAN “KOMPOSTER” SKALA RUMAH TANGGA Firman Laili Sahwan
Jurnal Teknologi Lingkungan Vol. 5 No. 2 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (126.715 KB) | DOI: 10.29122/jtl.v5i2.309

Abstract

Composting as one of efforts to overcome municipal solid waste problem has enough potency because 70-80 % of municipal solid waste is organic material, mostly can be processed to compost. Composting in source of waste (household) will be more effective because is easier (small scale) and cheaps (transport is not necessary). Composting can be done by using composter. Research result showing that composter is easy to be made, easy to be applied in our society and effective enough to use in producing municipal waste compost. The compost processing time is 49 days and producing the good quality of compost.
SISTEM PENGELOLAAN LIMBAH PLASTIK DI INDONESIA Firman Laili Sahwan
Jurnal Teknologi Lingkungan Vol. 6 No. 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.993 KB) | DOI: 10.29122/jtl.v6i1.330

Abstract

Plastic recycling activities has been done by nonformal institutions since along time ago especilaly in some big cities in Indonesia. The amount of plastic waste is about 10% to 15% of municipal soild waste. Plastic recycling activities has twoadvantages: (1) reducing the potential damage of environment caused by pollution, and (2) creating the job opportunity for people.
Co-Authors Febriyanto, Irhan Muhammad Hanif Rudi Nugroho Sri Wahyono Suryanto, Feddy