Instalasi Pengolahan Air Limbah Industri Pemerahan Sapi dengan sistem lumpur aktif seringkali mengalami masalah, salah satunya adalah masalah sludge bulking. Permasalahan bulking menyebabkan pengendapan sangat buruk dan melimpah menuju outlet bak sedimentasi unit selanjutnya. Hal ini mengakibatkan kualitas pengolahan tidak berjalan optimal hasil masih sering keruh berbau. Salah satu solusi untu...

The digestibility of proteins in red kidney bean (Phaseolus vulgaris L.) was examined by in vitro pepsin assay. A 20-kDa polypeptide that remained highly stable after heat processing was identified as a basic subunit of legumin. The results of a monobromobimane (mBBr) labeling test implied that this protein contained rigid intramolecular disulfide bonds, which might contribute to pepsin resista...

Two bench-scale parallel moving bed biofilm reactors (MBBR) were operated to assess pH-associated anammox activity changes during long term treatment of anaerobically digested sludge centrate pre-treated in a suspended growth partial nitrification reactor. The pH was maintained at 6.5 in reactor R1, while it was allowed to vary naturally between 7.5 and 8.1 in reactor R2. At high nitrogen loads...

.................................................................................................................................................... 1 I – INTRODUCTION .................................................................................................................................... 2 II – BACKGROUND .................................................................................

The study aims to compare three sewage biological treatment methods- activated sludge, moving bed biofilm reactor (MBBR), and fixed reactor. sludge method is the most used in ship treatment. However, carrier methods, such as MBBR reactors, have improved their effectiveness with industrial wastewater, being considered industrial. An experiment was carried out untreated samples, chemical oxygen d...