Sri Wahyono
Sekretariat Unit Penelitian dan Pengabdian kepada Masyarakat (UP2M) Politeknik Negeri Jakarta Gedung Direktorat Lt.2, Telp.(021) 7270036 Psw. 236 Fax (021)7270034 Kampus Baru Universitas Indonesia Depok, DEPOK 16425 Email: politeknologi_pnj@yahoo.co

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TINJAUAN MANFAAT KOMPOS DAN APLIKASINYA PADA BERBAGAI BIDANG PERTANIAN Wahyono, Sri
Jurnal Rekayasa Lingkungan Vol 6, No 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (94.104 KB)

Abstract

Application of chemical fertilizer without adding organic mater causing land poor in nutrients and low of microbial diversity. It causes dedradation of land fertility. This situation can be solved by applying of compost. Nevertheless, macronutriens content of compost are low, it has advantages such as improving physical soil properties, soil permeability, porosity, structure, water holding capacity, etc.Compost application effect is depend on the type of plant and physico-chemical properties of soil, compost characteristics, doses and time of compost application. Compost aplication is agronomically and economically benefit for farming activities that is in line with the organic farming.Key words: Compost, fertilizer, agricultural
ENHANCED LANDFILL MINING: KONSEP BARU PENGELOLAAN LANDFILL BERKELANJUTAN Wahyono, Sri
Jurnal Teknologi Lingkungan Vol. 13 No. 3 (2012)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.559 KB) | DOI: 10.29122/jtl.v13i3.1392

Abstract

Enhanced landfill mining (ELFM) adalah konsep baru yang terintegrasi tentang recovery material dan energi pada sebuah landfill yang bermanfaat bagi keberlanjutan pengelolaan material dan pengelolaan landfill. Konsep tersebut mengintegrasikan berbagai teknologi seperti teknologi ekskavasi, teknologi pemilahan, teknologi termal, teknologi transformasi dan daur ulang. Hal tersebut juga terintegrasi dengan aspek non teknis seperti aspek regulasi, market, ekonomi, sosial, dan lingkungan. Konsep ELFM menjadi alternatif solusi permasalahan pengelolaan landfill. Kata Kunci: landfill mining, berkelanjutan AbstractEnhanced landfill mining (ELFM) is a new concept that integrates recovery of materials and energy in a landfill for sustainability of material and landfill management.The concept integrates a variety of technologies such as excavating, sorting, thermal, transformation and recycling technology. It is also integrated with the non-technical aspects such as regulatory, market, economic, social, and environmental aspects. The concept of ELFM can be an alternative solution for the landfill management problem. Keywords: landfill mining, sustainability 
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
DINAMIKA PERUBAHAN TEMPERATUR DAN REDUKSI VOLUME LIMBAH DALAM PROSES PENGOMPOSAN (STUDI KASUS PENGOMPOSAN DI RPH CAKUNG – JAKARTA TIMUR) Wahyono, Sri
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): 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 | DOI: 10.29122/jtl.v9i3.469

Abstract

The goal of this research is to study the dynamics changing of temperature, weight and volume of wastes during composting process in Cakung Slaughterhouse. The composting process was done using windrow system for 65 days. Windrow was turned mechanically using compost turning machine once a week. Composition of input wastes was calculated based on its volume and specific weight. Regularly, windrows were measured of their volume, weight and temperature. The composting shows that weight and volume reduction was exponentially done in the two of the first weeks. The temperature also exponentially increased in that time. Those indicated that the increasing of metabolisms and development of microbiology during composting process. Weight and volume reduction reached about 80 percent, and their temperature reached above 55oC during first weeks. The dynamics changing of the temperature and volume/weight reduction was the key parameter for evaluating composting process.
UJI KEMAMPUAN BAKTERI TERMOFIL KOMPOS DALAM MENGURAIKAN POLY(3-HYDROXYBUTYRATE) DAN KOPOLIMERNYA DENGAN MENGGUNAKAN METODE POLYMER OVERLAY Wahyono, Sri
Jurnal Teknologi Lingkungan Vol. 5 No. 3 (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 | DOI: 10.29122/jtl.v5i3.313

Abstract

The primary aim of this project were to isolate the termophilic bateria from compost and to test their capability in degrading of Poly(3-hydroxybutyrate) and its copolymer (P(HB-co-5%HV), P(HB-co-8%HV), P(HB-co-12%HV)) using of polymer overlay methode. Testing of their capability was done in pH 8,0 and temperature of 55oC and 60oC. Fifteen isolates of thermophilic bacteria have been isolated and can be classified into 4 groups based on the profile of their growth rate, clear zone formation, and capability of PHB degradation. In the incubation of 55oC, degradation rate of Poly(3-hydroxybutyrate) was generally slower than their copolymer.
Analisis Efektivitas Konsep Pengelolaan Sampah Organik melalui Teknologi Komposting (Studi Kasus di Kota Probolinggo, Jawa Timur) Wahyono, Sri
Jurnal Teknologi Lingkungan Vol. 17 No. 1 (2016)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.1 KB) | DOI: 10.29122/jtl.v17i1.1463

Abstract

Tujuan dari penelitian ini adalah menguji efektivitas konsep pengelolaan sampah organik melalui analisisaliran material. Konsep pengelolaan sampah organik yang dianalisis terdiri atas empat skenario yangmelibatkan komposting skala rumah tangga, skala lingkungan dan skala kota. Berbagai skenario tersebutkemudian dianalisis aliran materialnya dengan metode analisis aliran material yang menggunakansoftware STAN versi 2.0.1703. Indikator yang dipilih dalam analisis aliran material meliputi aliran massasampah, Nitrogen (N), gas metana (CH4), recyclable materials, kompos, dan residu. Dengan asumsiseluruh sampah organik dikomposkan maka akan didapatkan produk kompos sebesar 11.222.817kg/tahun, recyclable materials sebesar 8.897.809 kg/tahun (yang terdiri atas material kertas, plastik,metal dan kaca), reduksi gas CH4 dari 2.326.008 ton/tahun hingga menjadi 9.255 -18.344 kg/tahun, dankonservasi unsur N sebesar 49.646 kg/tahun. Konsep pengelolaan sampah, terutama desentralisasikomposting merupakan alternatif pengelolaan sampah yang efektif karena bersifat padat karya; dapatberadaptasi secara baik pada kondisi sosio-ekonomi daerah; menciptakan lapangan kerja bagimasyarakat berketerampilan terbatas; dan manajemen serta operasinya fleksibel sehingga secara cepatdapat beradaptasi dengan perubahan.
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
KEBIJAKAN PENGELOLAAN LIMBAH ELEKTRONIK DALAM LINGKUP GLOBAL DAN LOKAL = Electronic Waste Management Policies in the Scope of Global and Local Wahyono, Sri
Jurnal Teknologi Lingkungan Vol. 14 No. 1 (2013)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (189.54 KB) | DOI: 10.29122/jtl.v14i1.1437

Abstract

In line with population growth and lifestyle, the number of electronic waste increased. Electronicwaste is a hazardous waste that threaten human survival. Various efforts have been and are beingtaken to prevent environmental degradation caused by poor management of electronic waste.However, electronic waste is a source of valuable material that can be recovered through a series ofprocesses in the manufacturing of electronic waste. Support from various parties necessary for therealization of a sustainable e-waste management.Keywords: electronic waste, pollution, extended producer responsibilityAbstrakSejalan dengan pertumbuhan penduduk dan gaya hidup, limbah elektronik semakin meningkatjumlahnya. Limbah elektronik secara umum merupakan limbah berbahaya sehingga dapatmengancam kelangsungan hidup manusia. Berbagai upaya telah dan sedang dilakukan untukmencegah terjadinya degradasi lingkungan akibat pengelolaan limbah elektronik yang buruk. Namundemikian, limbah elektronik adalah sumber material berharga yang dapat di-recovery melaluiserangkaian proses di industri pengolahan limbah elektronik. Dukungan dari berbagai pihakdiperlukan untuk terwujudnya pengelolaan limbah elektronik yang berkelanjutan.Kata Kunci: Limbah elektronik, pencemaran, extended producer responsibility
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.
KUALITAS KOMPOS SAMPAH RUMAH TANGGA YANG DIBUAT DENGAN MENGGUNAKAN ”KOMPOSTER” AEROBIK Sahwan, Firman; Wahyono, Sri; Suryanto, Feddy
Jurnal Teknologi Lingkungan Vol. 12 No. 3 (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 (348.697 KB) | DOI: 10.29122/jtl.v12i3.1231

Abstract

Upaya pembuatan kompos sampah rumah tangga dengan menggunakan ”komposter”, dapat membantu upaya pengelolaan sampah kota dalam bentuk: mengurangi jumlahtimbulan sampah di sumber, mengurangi biaya transportasi pengangkutan sampah dan dapat memperpanjang umur TPA. Untuk itulah penelitian ini dilakukan dengan tujuan mengevaluasi efektivitas proses pengomposannya, sekaligus mengetahui kualitas kompos yang dihasilkan. Parameter analisis kualitas kompos yang digunakanadalah: keberadaan mikroba kontaminan, tingkat kematangan, serta kesesuaian dengan Permentan No. 28 of 2009 atau SNI Kompos 2004. Hasil penelitian menyimpulkan bahwa proses pengomposannya berjalan dengan baik dan cukup efektif, serta menggambarkan proses dekomposisi secara aerobik. Adapun produk kompos yang dihasilkan berkualitas baik, bebas dari mikroba kontaminan (patogen), memenuhi persyaratan kompos matang dan secara umum sesuai dengan parameter yang dipersyaratkan oleh Permentan Pupuk Organik atau SNI Kompos 2004.