Teknologi Kombinasi Koagulasi Mekanik dan Flokulasi Hydrocyclone Dalam Menyisihkan TSS dan Kekeruhan Pada Limbah Cair Pengolahan Ikan

Fajar Shufi Fauzianto; Firra Rosariawari

Authors

Fajar Shufi Fauzianto Universitas Pembangunan Nasional Veteran Jawa Timur Author
Firra Rosariawari Universitas Pembangunan Nasional Veteran Jawa Timur Author

Keywords:

Hydrocyclone, TSS, kekeruhan, PAC, koagulasi

Abstract

This study aims to optimize the process of mechanical coagulation and flocculation using a hydrocyclone to reduce Total Suspended Solids (TSS) and turbidity in wastewater from the fish processing industry. Wastewater from this sector is known to contain relatively high levels of TSS and turbidity, requiring proper treatment to meet the applicable quality standards. The coagulation process is carried out mechanically by adding Poly Aluminium Chloride (PAC) as a coagulant, followed by a flocculation process using a hydrocyclone device that utilizes centrifugal force to separate particles. This study investigates the effect of varying hydrocyclone diameters (15 cm and 20 cm), flow rates (5, 10, and 15 L/min), and PAC dosages (20, 40, 60, and 80 mL) on the removal efficiency of TSS and turbidity. The results show that the combination of a 15 cm diameter, 15 L/min flow rate, and 80 mL PAC dosage achieved the highest removal efficiencies for TSS and turbidity, at 83.2% and 90.1%, respectively, approaching the regulatory limits. This research demonstrates that the combination of mechanical coagulation and hydrocyclone-based flocculation is an efficient treatment method and feasible for industrial scale application.

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