Penurunan kadar amonia dan nitrat pada air limbah tambak udang menggunakan teknologi bioflok dengan bantuan effective microorganisms 4 em4 = Decreased levels of ammonia and nitrate ishrimp farms wastewater using biofloc technology by helping effective microorganisms 4 em4

Penurunan kadar chemical oxygen demand (COD) dan amonia pada air lindi dengan metode constructed wetland aliran subsurface flow menggunakan tanaman scirpus grossus (studi kasus : TPST Bantar Gebang) = Decreased levels of chemical oxygen demand (COD) and ammonia in leachate with subsurface flow constructed wetland method using scirpus grossus (case study : Bantar Gebang Landfill)

Penggunaan sistem moving-bed biofilm sequencing batch reactor (MBSBR) dalam menurunkan konsentrasi chemical oxygen demand (COD) pada air limbah industri gula aren = The application of moving-bed biofilm sequencing batch reactor system in decreasing chemical oxygen demand (COD) concentration on palm sugar industry wastewater

Perbandingan proses pengomposan limbah organik rumah tangga dengan cara vermicomposting dan effective microorganisms 4 (EM4)

Analisis pengaruh resirkulasi air lindi terhadap umur Landfill ditinjau dari parameter fisik (penurunan sampah, PH dan temperatur) dan parameter kimia (Biochemical oxygen demand dan chemical oxygen demand) pada Bioreaktor Landfill = Analysis of leachate recirculation effect toward Landfill age observed by physical parameters (Waste reduction. pH and temperature) and chemical parameters biochemical oxygen demand and chemical oxygen demand) on the Landfill Bioreactor