MIPA
LAPORAN HASIL PENELITIAN HIBAH BERSAING TAHUN I
STRATEGI MITIGASI BENCANA LINGKUNGAN DARI BAHAN BERBAHAYA DAN BERACUN DENGAN MEMANFAATKAN LIMBAH LUMPUR INDUSTRI MENJADI MATERIAL BANGUNAN
Ketua : Tutik Setianingsih Anggota : Bambang Ismuyanto
Dibiayai Oleh Direktorat Jenderal Pendidikan Tinggi, Kementerian Pendidikan Nasional, melalui DIPA Universitas Brawijaya berdasarkan SK Rektor Nomor: 039/SK/2010, tanggal 17 Februari 2010.
Universitas Brawijaya Nopember 2010
RINGKASAN
STRATEGI MITIGASI BENCANA LINGKUNGAN DARI BAHAN BERBAHAYA DAN BERACUN DENGAN MEMANFAATKAN LIMBAH LUMPUR INDUSTRI MENJADI MATERIAL BANGUNAN Telah dilakukan penelitian tentang penanganan limbah padat industry pelapisan logam yang mengandung kromium (III) melalui solidifikasi dengan pembentukan monolith. Fokus penelitian diarahkan pada kajian pengaruh penambahan bahan pencampur semen sebagai aditif monolith terhadap kual;itas monolith, ditinjau dari kuat tekan dan TCLP –Cr(III).Untuk mencapai tujuan itu maka monolith dibuat dengan perbandingan massa limbah lumpur kering dan bahan aditif 0,78, perbanduingan massa air dan padatan 0,62, perbandingan bahan pencampur dan semen 0 s/d 0,8, serta lama proses solidifikasi selama 28 hari. Karakterisasi monolith yang telah dilakukan meliputi karakterisasi utama, yaitu data TCLP dan kuat tekan, serta data pendukung meliputi karakterisasi struktur krtistal dengan difraksi sinar X, karakterisasi luas muka dengan metode adsorpsi gas nitrogen, pH akhir monolith, dan pH akhir ekstraks TCLP. Hasil penelitian menunjukkan bahwa perbandingan massa bahan pencampur dan semen berpengaruh terhadap kuat tekan maupun hasil uji TCLP – Cr(III). Makin tinggi kandungan bahan pencampur makin rendah kuat tekan dan makin rendah kadar Cr(III) dalam ekstraks TCLP. Berdasarkan hasil uji TCLP dan kuat tekan, disimpulkan bahwa zeolit dapat digunakan sebagai pencampur semen hingga perbandingan 0,8, sedangkan abu bagas hanya sampai 0,66. Kata kunci : semen, limbah industri pelapisan logam, zeolit, abu bagas
SUMMARY ENVIRONMENTAL DISASTER MITIGATION STRATEGY OF HAZARDOUS AND TOXIC SLUDGE USING INDUSTRIAL WASTE INTO THE BUILDING MATERIAL An investigation about handling solid waste of industrial metal coating containing chromium (III) through the solidification with the formation of monoliths, has been conducted. The focus of research was directed to study the effect of cement mixing material as an additive of monoliths toward quality of monolith, in terms of compressive strength and TCLP-Cr (III).To achieve this goal, the monolith was made with ratio of sewage sludge dry mass ratio and additives at 0.78 , water and solids mass at 0.62, the ratio of cement mixers and cement at 0 to 0.8, and the long process of solidification for 28 days. Characterizations of monoliths have been carried out, covering the main characterization, ie TCLP and compressive strength, and supporting data covering crystal structure by X-ray diffraction, surface area by nitrogen gas adsorption method, the final pH of monoliths, and the final pH of TCLP extracts.The results showed that the mass ratio of the cement mixing material effected on the compressive strength and TCLP test - Cr (III). The higher the content of the material the lower the compressive strength of the monolith and the lower the levels of Cr (III) in the TCLP extracts. Based on TCLP test and value of compressive strength, it can be concluded that the zeolite can be used as mixer of cement to 0.8, whereas only up to 0.66 for bagasse ash. Keywords: cement, metal plating industry wastewater, zeolite, ash bagasse
DAFTAR PUSTAKA
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