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All Journal Sainteks Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Proceeding Seminar LPPM UMP Tahun 2014 PROSIDING SENATEK FAKULTAS TEKNIK UMP Jurnal Ilmu Kefarmasian Indonesia Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Peduli Masyarakat Proceedings Series on Physical & Formal Sciences Techno Research In Chemical Engineering Jurnal Teknik Kimia dan Lingkungan Jurnal Pengabdian Teknik dan Sains (JPTS) Journal of Society, Community and Business Development
Neni Damajanti, Neni
Universitas Muhammadiyah Purwokerto
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Research In Chemical Engineering

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Reduction of Chemical Oxygen Demand (COD) and Total Suspended Solids (TSS) from Wastewater of Tapioca Plant Using Aluminium Sulfate and Poly Aluminium Chloride (PAC) as a Coagulant neni damajanti
Research in Chemical Engineering Vol. 1 No. 1 (2022): March
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.717 KB) | DOI: 10.30595/rice.v1i1.5

Abstract

Water is the source of life on the surface of the earth. But often the water used for life contains many organic compounds that are harmful to life. This is due to contamination of water sources by compounds from many places, one of which is waste from the tapioca industry. One method that can be used to reduce water pollution is the coagulation process using certain coagulants. The ability of Poly Aluminium Chloride (PAC) and aluminum sulfate as coagulant is utilized in the processing of tapioca wastewater to reduce COD and TSS levels. This study aims to determine the effect of coagulant dose and flocculation time on decreasing COD and TSS levels in tapioca wastewater from Purbalingga Aci Factory. The method used is coagulation using PAC and aluminum sulfate as a coagulant with a variation of the coagulant dose of 2000; 4000; 6000; 8000 and 10,000 mg/L as well as variations in flocculation time 25; 30; 35; 40 and 45 minutes. The results showed that the coagulant dose and flocculation time had an effect on decreasing COD and TSS in tapioca wastewater. The best use of PAC coagulant at a dose of 6000 mg/L with a flocculation time of 45 minutes, namely the COD value of 375.2 mg/L and TSS 110 mg/L. While the best use of aluminum sulfate coagulant at a dose of 8000 mg/L with a flocculation time of 45 minutes, namely the COD value of 203.2 mg/L and TSS 590 mg/L
Reduction of Heavy Metal Levels (Pb and Fe) in Chemical Laboratory Wastewater by the Coagulation Method using Moringa Seeds Bio-coagulants (Moringa oleifera) Elia Trisnawati; Neni Damajanti
Research in Chemical Engineering Vol. 2 No. 2 (2023): September
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/rice.v2i2.90

Abstract

Chemical laboratory wastewater treatment is important because contains hazardous wastewater substance that pollute the environment if not treated properly. Instead of to Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and Biological Oxygen Demand (BOD) content, chemical laboratory wastewater also contains several types of heavy metals, such as Pb and Fe, which are infectious, pathological, and cytotoxic. One of the effective methods to treat the chemical laboratory wastewater is the coagulation-flocculation method with the addition of moringa seed powder bio-coagulant. The aim of this study was to determine the effect of coagulant dose and and precipitation time in reducing Pb and Fe metal levels in chemical laboratory wastewater. This study used variations in coagulant dose (1500, 2000, 2500, 3000, and 3500 mg/L) and precipitation time (20, 30, 40, 50, and 60 min). The result showed that the initial level of Pb and Fe in wastewater were 0.519 and 7.849 mg/L, respectively. The dose of 3000 mg/L of Moringa seed bio-coagulants showed the best concentration to reduce Pb level to 0.084 mg/L. On the other hand, at 3500 mg/L for reduction of Fe into 5.555 mg/L. The precipitation at 30 min showed the best time for reducing level both of Pb and Fe into 0.065 mg/L and 4.569 mg/L, respectively. However, the final level of Pb and Fe of wastewater after coagulation resulting in the below quality standard under The Minister of Environment Regulation Number 5 of 2014.
Co-Authors Abdul Haris Mulyadi Alwani Hamad amir - Amiratus Sholikhah, Amiratus Anis Shofiyani Anis Shofiyani Anwar Ma'ruf Anwar Maruf Anwar Maruf Anwar Ma’ruf Darodjat, Darodjat Dini Nur Afifah Dini Nur Afifah Dini Nur Afifah Dini Nur Afifah Elia Trisnawati Endar Puspawiningtiyas Endar Puspawiningtiyas Endar Puspawiningtiyas Erny Rachmawaty Farisi, Muhammad Faqih Al Fitri Atyani, Fitri Ganda Kurniawan Ganda Kurniawan, Ganda Hanafi Khafid Nugraha Hariyanti Hariyanti Hariyanti Hariyanti Maulani Mustholidah Maulani Mustholidah Regawa Bayu Pamungkas santosa, Arif Prashadi Titik Kusumawinakhyu Ubaidillah, Saad