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All Journal Prosiding SNATIF Proceedings Series on Physical & Formal Sciences
Ahmad Mashadi
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Mechanical Engineering

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PENGARUH TREATMENT AIR TERHADAP KUALITAS AIR DI DESA BALESARI KECAMATAN WINDUSARI KABUPATEN MAGELANG Mashadi, Ahmad; Amin, Muhammad
Prosiding SNATIF 2017: Prosiding Seminar Nasional Teknologi dan informatika (BUKU 1)
Publisher : Prosiding SNATIF

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Abstract

Abstrak Air merupakan sumber daya yang dapat diperbaharui dan untuk memenuhi kebutuhan manusia memerlukan air yang berkualitas, sementara itu kualitas air tanah dipengaruhi oleh sistem akifer dalam tanah. Secara kualitas air permukaan kurang baik bagi kesehatan, sedangkan kualitas air tanah lebih baik. Untuk konsumsi air bersih manusia harus ikuti Permenkes Nomor 416/MENKES/IX/1990 sebagai  acuan untuk memenuhi   syarat   sehat. Masyarakat   BalesariWindusari, Magelang mengkonsumsi air dari mata air Gendol dan Jambean, yang kualitas air mata air Gendol terdapat parameter Selenium melebihi ambang batas. Kelebihan kadar selenium bila dikonsumsi manusia menyebabkan mual, muntah, rambut kuku rontok, ruam di kulit dan kerusakan saraf, maka perlu dikaji upaya menurunkan kadar selenium. Berdasarkan kajian terdahulu bahwa metode saringan dapat menurunkan kadar selenium dan dengan memanaskan air diharapkan dapat menurunkan kadar selenium dalam air. Metode menurunkan kadar selenium dengan sampel dari pemanasan air pada suhu 80oC, 90oC, 100oC. Cara lain dengan cara air dilewatkan media saringan pasir, kerikil dan karbon aktif dengan 3 variasi tebal untuk tiap media filter sehingga tebal total 90 cm. tebal 1: kerikil 30 cm, pasir 30 cm, karbon aktif 30 cm, tebal 2: kerikil 30 cm, 35 cm, karbon aktif 25 cm dan tebal 3: kerikil 30 cm, pasir 40cm, karbon aktif 20 cm. Hasil kadar Se dari pemanasan 80oC = rata-rata 0,017 mg/lt, pemanasan 90oC = 0,013 mg/lt, 100oC = <0,01µg/l. Dari cara saringan untuk ke tiga variasi tebal kerikil, pasir, karbon aktif kadar Se =<0,01µg/lt. Kesimpulan bahwa semakin tinggi pemanasan kadar selenium semakin rendah dengan optimum pemanasan 100oC, untuk penyaringan dari ke tiga variasi dapat menurunkan selenium di bawah ambang batas.  Kata kunci: mata air, pemanasan, penyaringan, selenium
Efektivitas Instalasi Pengolahan Air Limbah Berdasarkan Parameter COD, BOD, TSS, pH (Studi Kasus Industri Tahu di Dusun Janten Ngestiharjo Kasihan Bantul) Setiadji, Wawan; Effendi, Novan Rico; Sutrisno, Widarto; Mashadi, Ahmad; Galuh, Dimas Langga Chandra
Proceedings Series on Physical & Formal Sciences Vol. 6 (2023): Prosiding Seminar Nasional Teknik (SENATEK) 2023
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v6i.848

Abstract

The liquid waste generated from tofu production process contains high Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Suspended Solid (TSS) as well as low pH levels or acidity. Therefore, the tofu waste needs to be treated before being discharged into the environment to prevent negative impacts on the surrounding environment. Thus, this study aimed to test the effectiveness of the tofu wastewater treatment plant by monitoring the parameters of COD, BOD, TSS and pH using the closed reflux titrimetry, gravimetri and pH meter methods. The sampling was carried out with triple sampling (triplo) at each testing point, which were the equalization tank, anaerobic baffle reactor tank, anaerobic filter tank, and final settling tank. The sample testing was conducted at the "Balai Laboratorium Kesehatan dan Kalibrasi Yogyakarta". The results of the testing were used to determine the reduction in COD and the increase in pH between the wastewater treatment plant tanks, and then the effluent of the wastewater treatment plant was compared with the wastewater quality standards. The results of this study indicate that the average reduction of COD in the effluent is 94%, BOD is 93%, and TSS is 87%. Based on these findings, it can be concluded that the effluent from the wastewater treatment plant is not yet effective in meeting the wastewater quality standards. However, it is worth noting that the pH parameter meets the wastewater quality standards, with an increase of +1.38 compared to the influent pH level. Therefore, in terms of this parameter, the wastewater treatment plant can be considered effective in raising the pH.
Co-Authors Dimas Langga Chandra Galuh, Dimas Langga Chandra Effendi, Novan Rico Muhammad Amin Setiadji, Wawan Sutrisno, Widarto