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MENGUBAH LIMBAH SLUDGE PABRIK PULP DAN KERTAS MENJADI PRODUK BERGUNA Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 1 No. 3 (2000): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Pulp and paper mills are one of the important industries that contribute ingovernment’s income. Unfortunatelly, they also produce the wastes, such assludge that potentially degrade the environmental quality. The common treatments of sludge are landfilling and incinerating. However, the current trend is to recycle of sludge or it is used for producing the valuable products like absorbents, fillers, compost, etc. These are more attractives than landfilling or incinerating due to economically benefit.

DAUR ULANG SAMPAH ORGANIK DENGAN TEKNOLOGI VERMICOMPOSTING Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 2 No. 1 (2001): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Organic material from municipal solid wastes can be recycled by compostingtechnology become organic fertilizer. One kind of composting technologies isvermicomposting that use earthworm as ‘machine” of composting process. Thereare two products from the process: biomass of worm and casting. Vermicomposting consists of three phases of activities such as preparation,processing, and nursing phase. Preparation phase consists of choosing oflocation, system, building, and equipment. Processing phase consists of making of worm media, preparation of worm and planting. Nursing phase consists of feeding, turning, cropping of casting and controlling of the disease. This article talk about those phases and the classification and characterization of earthworm.

PENGOLAHAN SAMPAH ORGANIK DAN ASPEK SANITASI Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 2 No. 2 (2001): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Organic waste is one of major problems that potentially degrade environmentalquality and public health so that it have to be treated proposionally. In therecent time, there are organic treatment technologies such as composting,incinerating, landfilling, etc. In this article, the author talks about organic wastetreatment and sanitation aspect of wastes.

PENGELOLAAN SAMPAH KERTAS DI INDONESIA Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 2 No. 3 (2001): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Paper waste is one type of municipal solid wastes that is not properly manage yet. It contributes about ten percent of MSW. Indonesia paper waste generation is about 1.6 million ton per year which 70 percent of them was recovered byscavengers and sold to the recycling paper industries. To optimize the paperwaste management, it is needed cooperation between community, private sectors and government in the MSW management. In this article, the author talks about paper waste generation and its potency, prospect and route of its market, and strategy of paper waste management.

PENGELOLAAN SAMPAH PERMUKIMAN BERBASIS MASYARAKAT Sri Wahyono; Firman L. Sahwan
Jurnal Teknologi Lingkungan Vol. 3 No. 1 (2002): JURNAL TEKNIK LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Kampung Banjarsari is a model of community based waste management in the Jakarta metropolitan area. It is becoming an example of an environmentally friendly kampung for other communities from different part of the country. What the Banjarsari reached is the results of very tight cooperation between Banjarsari community, UNESCO and Yayasan Kirai and BPPT since 1996. The main activities in Banjarsari are focused on (1) establishment of an environmental committee at the community level, (2) improvement of the waste collection system (sorting of waste), (3) capitalization on waste trough alternative livelihood activities (paper recycling, composting, growing of plants using locally produced compost as fertiliser), (4) greening programmes, and (5) public awareness.

PENERAPAN TEKNOLOGI TINGGI UNTUK PENGELOLAAN LIMBAH PADAT DI SINGAPURA Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 5 No. 1 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The application of high technology (hitech) for solid waste management andtreatment in Singapore is one of examples of solving the municipal solid waste problem. Singapore with more than 4 million inhabitants produced 7676 ton wastes per day in 2001. Now, all the combustible solid wastes goes to the incinerator plant that can convert the heat into electricity. The ash from incinerator and the incombustible solid wastes are transported via waste harbour in Tuas to the Semakau off shore landfill. Also, before incinerating in the plant, the activities of collecting and transporting of munocipal solid wastes are suported by such kind of new technologies for example pneumatic refuse transport system. The typical of the high tecnology is need high cost for building, operating and maintaining and should be operated by high skill staff. Singapore has all the need and also has a strong political will in combating the solid waste problems. So that, Singapore is one of the cleanest metropolitan cities in the world.

UJI KEMAMPUAN BAKTERI TERMOFIL KOMPOS DALAM MENGURAIKAN POLY(3-HYDROXYBUTYRATE) DAN KOPOLIMERNYA DENGAN MENGGUNAKAN METODE POLYMER OVERLAY Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 5 No. 3 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

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.

IDENTIFIKASI POPULASI GASTROPODA AIR TAWAR DI WADUK SAGULING DAN SEKITARNYA Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 6 No. 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

This research has been carried out in Saguling, Jawa Barat. The aims of theresearch were to study the population of fresh water gastrophod and itsecological aspects. The research was done at three habitats which were thedam, paddy fields and ponds in three location : South Inlet, East Inlet and West Outlet of Saguling dam. It has been found 6 species of gastrophod which were Pomacea caniculata, Bellamya javanica, Lymnaea rubiginosa,Indoplanorbis exustus, Gyraulus convexiuscslus and Melanoides tuberculata. In all the habitats the density of species of Pomacea caniculata,Bellamya javanica and Lymnaea rubiginosa were relatively higher than others. While the highest dominantion index of gastrophod were at habitat of paddy fields in all locations and at habitat of ponds in East Inlet and West Outlet locations. Pomacea caniculata, Bellamya javanica and Lymnaea rubiginosa were dominant at habitat of pady fields and ponds. Furthermore, the highest gastrophod diversity index was at habitat of dam in South Inlet and West Outlet locations. All the gastrophod species were found in a group. On the other hand, there was a tendention that each habitat had a different gastrophod species.

DINAMIKA PERUBAHAN TEMPERATUR DAN REDUKSI VOLUME LIMBAH DALAM PROSES PENGOMPOSAN (STUDI KASUS PENGOMPOSAN DI RPH CAKUNG â€“ JAKARTA TIMUR) Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

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.

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