Susilo, Fahmi Agus Priyo (2014) Pengaruh Variasi Waktu Tinggal Terhadap Kadar COD dan BOD Limbah Tapioka dengan Metode Rotating Biological Contactor. Sarjana thesis, Universitas Brawijaya.
Abstract
Air merupakan salah satu sumber daya alam yang sangat penting bagi kehidupan manusia, baik untuk memenuhi kebutuhan hidup sehari-hari maupun untuk kepentingan lainnya seperti pertanian dan industri. Oleh karena itu, diperlukan pengolahan air yang telah tercemar hingga layak digunakan untuk aktivitas sehari-hari. Salah satu jenis limbah cair yang mempunyai kandungan bahan organik yang cukup tinggi adalah limbah cair tepung tapioka. Penelitian ini menggunakan prinsip kerja Rotating Biological Contactor untuk menurunkan kadar COD, BOD, TSS, dan meningkatkan nilai pH pada limbah cair tepung tapioka. Proses penurunan kadar COD, BOD, TSS dan pH dilakukan dengan memvariasikan waktu tinggal antara 12, 32 dan 48 jam dengan kecepatan putaran sebesar 100 rpm yang terbukti mampu menurunkan kadar nutrisi limbah. Berdasarkan hasil penelitian yang telah dilakukan, penggunaan reaktor Rotating Biological Contactor terbukti dapat menurunkan kandungan COD, BOD, TSS sebanyak 94,54% dan meningkatkan nilai pH sebesar 47,4% pada limbah cair tapioka. Kecepatan putar cakram sebesar 100 rpm dengan waktu tinggal 48 jam dapat menurunkan kandungan BOD turun sebesar 96,1%, COD turun sebesar 97,9%, TSS turun sebesar 89,63%, dan pH meningkat sebesar 47,4%. Sehingga dalam penelitian ini waktu tinggal 48 jam mempengaruhi nilai konsentrasi BOD dan COD dengan jumlah penurunan yang memenuhi baku mutu, dimana dengan waktu tinggal yang lebih lama maka kontak limbah dengan bakteri biofilm akan semakin lama sehingga memberikan efisiensi penurunan konsentrasi BOD dan COD
English Abstract
Water is the one of nature product which important of human lifes, even for daily or another reason for agriculture and industry. Therefore, water existing for lives need tobe care of unresponsibility action. Liquid waste treatment is suggested for a good step into a better life of environment and gives their positive energy to the world. One kind of the waste water which has a lot of organic material was liquid waste of cassava flour. This research was using Rotating Biological Contactor method to decreased COD, BOD TSS and increasing pH of cassava flour liquid waste. The process of decreasing COD, BOD, TSS and pH nutrient was through by time detention variated between 12, 32 and 48 hours with 100 rpm for the speed of rotation and this speed has been worked to decreased the waste nutritions. According to research that has been through for a couple months, the used of Rotating Biological Contactor reactor has shown their works of decreasing the nutrition of COD, BOD, TSS for 94,54% and increasing pH value up to 47,4% for this liquid waste. The speed of the disks was 100 rpm with 48 hours time detention has decreasing BOD up to 96,1%, COD 97,9%, TSS 89,63% and pH increased up to 47,4%. So, in this researched with 48 hours time detention was giving the effect of concentrated value of BOD and COD with decreasing point which available for the true standart value of liquid waste that government gives, which is the longest time detention used would be contact more effective to biofilm. So, that would like to give more efficient for BOD and COD decreasing.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FTP/2014/269/051404165 |
| Subjects: | 300 Social sciences > 338 Production > 338.1 Agriculture |
| Divisions: | Fakultas Teknologi Pertanian > Teknologi Industri Pertanian |
| Depositing User: | Hasbi |
| Date Deposited: | 15 Aug 2014 14:59 |
| Last Modified: | 09 Nov 2021 05:20 |
| URI: | http://repository.ub.ac.id/id/eprint/149663 |
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