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Paramitha, Tifa
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Journal : Serambi Engineering

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Evaluasi Kinerja Operasi Unit Koagulasi Flokulasi Dalam Sistem Instalasi Pengolahan Air Limbah Endang Kusumawati; Rivaldo Rofie Fauzi Budiman; Rizky Setianto; Tifa Paramitha; Retno Dwi Jayanti
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The coagulation and flocculation processing units represent a series of processing units that employ physical and chemical methods. The objective of this research is to ascertain the impact of coagulant type on process parameters, including turbidity, TSS, and pH, within the coagulation-flocculation processing unit integrated within the WWTP system. This research employs the use of raw water in the form of an artificial wastewater with characteristics closely resembling those of domestic wastewater, with a particular focus on process parameters such as turbidity, total suspended solids (TSS), and pH. The coagulants employed in the coagulation process are polyaluminum chloride (PAC) and aluminum sulfate/alum (Al₂(SO₄)₃.18H₂O). The operation of the wastewater treatment plant (WWTP) is conducted with a coagulation stirring speed of 150 rpm, while flocculation is performed at 60 rpm. A jar test was conducted to ascertain the optimal dose and pH of the coagulant. The results demonstrated that the optimal dose of PAC was 50 ppm, with an optimal pH of 7. In contrast, the optimal dose of alum was 60 ppm, with an optimal pH of 8. The findings revealed that the dose obtained through the implementation of the jar test in the WWTP unit with a stirring speed of 150 rpm yielded the most effective PAC coagulant results, with a TSS value of 10.53 mg/L, turbidity of 4.01 NTU, and pH of 6.74, accompanied by a TSS efficiency value of 94.86%. The velocity gradient and residence time in the coagulation and flocculation units do not align with the specified design criteria. However, both the residence time and overflow rate in the sedimentation unit meet the prescribed design criteria.
Co-Authors -, Alfiana Adhitasari Agustin, Delliana Aji, Restu Alatif, Ikhsan Akmal Alfiana Adhitasari Amelia Nur Aliah Andrijanto, Eko Anggraini, Yuki Martha Arijan Vevayose Tarigan Aulia, Bunga Azzahra, Rafila Chika Azzahra, Tarisha Aulia Bambang Soeswanto binti Jamaluddin, Jamarosliza Dwi Irmawati, Dwi Elizabeth, Lidya Endang Kusumawati Endang Kusumawati Gamaliel Tanaka Hariyadi, Tri Herawati Budiastuti Heru Hermawan Hidayatulloh, Irwan Irianto, Indra Jayanti, Retno Dwi Kharisma, Luthfiana Kurnia, Dianty Rosirda Dewi Lestari Herlianti Putri Luviana, Angely Malik, Dava Maulana Manfaati, Rintis Muhammad Misbahussalam Muhari, Emma Hermawati Mukhtar Ghozali Ngatin, Agustinus Nidaulhusna, Anisa Nirmala Utami Nurbaits, Alisya Nurhasanah, Santy Nurul Annisa Nurulgina, Rahma Permatasari, Rahma Puspa Putri, Angelina Rachmawati, Anissa Nurul Rahma Ardelia Raissa Rahmawati, Sri Puji Ramadhan, Muhammad Zikri Ramadhani, Laily lsna Retno Indarti Reynaldi, Randi Rivaldo Rofie Fauzi Budiman Rizky Setianto Robby Sudarman Rusdianasari Rusdianasari Sabinna Azahra Sulaeman Salsabila, Iva Najwa Salsabila, Salwa Ainaya Salsabila, Shafira Salsabilla, Iva Najwa Sari, Radianti Novita Setiawan, Kiranna Shalmadevy Setyaningrum, Sinta Shafira Yulianthina Sihombing, Rony Sihombing, Rony Pasonang Suryadi, Joko Taufiqurohim, Teguh Teguh Aditya Nugraha Tika Paramitha Tika Paramitha Tri Reksa Saputra Trirahayu, Dhyna Analyes Unung Leoanggraini Utami, Khoirunnisa Wardana Putra, Adzikri Yusuf, Yusmardhany Zahwa, Keisya Adellia