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Wiwik Purwiningsih
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Chemical Engineering, Chemistry & Bioengineering Environmental Science

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PEMANFAATAN LIMBAH INDUSTRI SANDAL SEBAGAI AGREGAT DALAM CAMPURAN SEMEN PUTIH UNTUK PEMBUATAN ORNAMEN PENGGANTI BATU ALAM Wiwik Purwiningsih
Purifikasi Vol 7 No 2 (2006): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v7.i2.250

Abstract

Sandal waste represents the residual peoduct, which is piled cumulatively in the residential areas around the factory. This fact becomes a consideration to use the waste for a particular purpose. This situation can be connected to the existence of interior and exterior ornament business where the waste can be used as raw material. This study was aimed to utilize the sandal waste as an aggregate, which is mixed with white cement, in order to replace of the natural stones. The method included trial tests of mixtures in different compositions, followed by comparisons of results according to visual performance and compression test. Results of this study showed that the best mixture was observed in cement and waste composition ratio of 1:3. At this composition, the aggregate was visually very good, easy to process, and save the use of cement. From the economical point of view, the use of sandal waste as described in this study, could provide an added value for the waste generator and a new employment opportunity.
PENGELOLAAN SAMPAH DALAM KAPAL PENUMPANG TIPE PAX 2000 Wiwik Purwiningsih; Atiek Moesriati
Purifikasi Vol 5 No 1 (2004): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.164 KB) | DOI: 10.12962/j25983806.v5.i1.299

Abstract

Strategi pengelolaan sampah di kapal penumpang ini bertujuan untuk mereduksi kuantintas sampah yang dibuang dari dalam kapal ke darat, karena belum terdapat upaya mereduksi sampah dalam kapal penumpang. Strategi pengelolaan sampah yang dibuat akan bisa mereduksi kuantitas sampah dari kapal yang dibuang ke darat sebesar 54,55 % dari seluruh kuantitas sampah kapal penumpang tipe PAX 2000. Strategi pengelolaan menghasilkan suatu koordinasi tugas yang lebih baik dan bisa mengefisienkan biaya pengelolaan sebesar 35,26 %.
Co-Authors Atiek Moesriati