Analisis dampak lingkungan proses daur ulang plastik polyethylene terephthalate dengan metode life-cycle assessment = Environmental impact analysis of polyethylene terephthalate plastic recycling process using life-cycle assessment method.

Evaluasi timbulan lumpur dan perancangan instalasi pengolahan lumpur : studi kasus: instalasi Pengolahan Air Minum (IPAM) Cibinong, PDAM Tirta Kahuripan = Evaluation of sludge generation and design of sludge treatment plant : case study : Cibinong Water Treatment Plant (WTP), PDAM Tirta Kahuripan

Evaluasi faktor-faktor penentu keberhasilan program UDPK: Studi kasus program usaha daur-ulang dan produksi kompos di DKI Jakarta

Potensi dan alur perjalanan material sampah daur ulang di pasar tradisional: studi kasus: TPS Pasar Youtefa, Kota Jayapura = Potential and flow of recycling waste at traditional market: material recovery facilitity Youtefa Market, Jayapura City

Daur ulang limbah padat perekat kayu lapis sebagai bahan pengisi : studi kasus di PT. Lakosta Indah Samarinda