Damayanti, Yolanda Gitya and Dr. Eng. Akhmad Adi Sulianto,, STP., MT., M. Eng and Satwika Desantina Muktiningsih,, ST.,MT (2023) Pengaruh Variasi Konsentrasi Air Limbah Tahu dan Waktu Tinggal Pada Constructed Wetland (SSF-W) Menggunakan Iris pseudacorus Terhadap Kadar COD, BOD dan TSS. Sarjana thesis, Universitas Brawijaya.
Abstract
Industri tahu merupakan salah satu industri sektor rumah tangga yang pada proses produksinya menghasilkan limbah cair dan padat. Banyak pelaku usaha industri tahu yang minim pengetahuan mengenai pengelolaan limbah cair tahu (Nasir et a., 2015). Limbah tahu yang tidak diolah memiliki karakteristik berwarna hitam dan menimbulkan bau yang tidak sedap (Rolia dan Yusuf, 2015). Air buangan dari industri tahu banyak mengandung bahan organik tinggi, seperti kadar BOD, COD, dan TSS. Pengolahan air limbah industri tahu ini menjadi salah satu upaya untuk mengurangi beban pencemar agar aman dibuang ke lingkungan. Salah satu proses pengolahan air limbah tahu dapat dilakukan secara fitoremediasi dengan sistem constructed wetland. Contoh kasus yang digunakan sebagai sampel penelitian ini adalah air limbah tahu dari industri tahu di Dusun Ketangi, Desa Tegalgondo, Kecamatan Karang Ploso, Kabupaten Malang yang masih belum dilakukan pengolahan dan dibuang langsung di perairan disekitar industri. Pengolahan air limbah tahu pada penelitian ini menggunakan sistem constructed wetland tipe Subsurface Flow Constructed Wetland (SSF-W) dengan memanfaatkan tanaman iris kuning (Iris pseuodacorus). Penelitian ini menggunakan variasi konsentrasi air limbah 20%, 30% dan 40% dengan variasi waktu tinggal 3, 6, dan 9 hari dalam skala laboratorium. Berdasarkan dengan hasil penelitian menunjukkan pengaruh pemberian perlakuan yang berbeda pada setiap parameter uji. Efisiensi removal pada sistem constructed wetland SSF-W pada penelitian ini antara lain parameter COD (82,62% - 97,77%), parameter BOD (81,67% - 97,23%) dan parameter TSS (85,30% - 97,88%). Kenaikan efisiensi removal kadar pencemar terjadi seiring dengan semakin lama waktu tinggal. Efisiensi removal terbaik terdapat pada perlakuan konsentrasi air limbah 20% dengan waktu tinggal 9 hari. Efisiensi removal kadar COD sebesar 97,77%, kadar BOD sebesar 97,23%, dan kadar TSS sebesar 97,88%. Selain dilakukan pengujian parameter COD, BOD, dan TSS pada penelitian ini juga dilakukan pengukuran pH dan suhu. Nilai pH pada penelitian berkisar 3,3 hingga 7,2 dan suhu air limbah berada pada rentang 26,2˚C hingga 29,9˚C. Sehingga dari hasil penelitian pengolahan air limbah tahu menggunakan tanaman Iris pseudacorus dengan sistem constructed wetland SSF-W memiliki efisiensi removal yang tinggi dan selama penelitian berlangsung, tanaman Iris pseudacorus mengalami peningkatan biomassa.
English Abstract
The tofu industry is one of the household sector industries which in its production process produces liquid and solid waste. Many business people in the tofu industry lack knowledge about tofu liquid waste management (Nasir et a., 2015). Unprocessed tofu waste has a characteristic black color and gives off an unpleasant odor (Rolia and Yusuf, 2015). Wastewater from the tofu industry contains a lot of high organic matter, such as BOD, COD and TSS levels. Tofu industrial waste water treatment is one of the efforts to reduce pollutant loads so that they are safely disposed of into the environment. One of the tofu wastewater treatment processes can be carried out by means of phytoremediation with a constructed wetland system. An example of a case that will be used as a sample in this study is tofu wastewater from the tofu industry in Ketangi Hamlet, Tegalgondo Village, Karang Ploso District, Malang Regency which has not been processed and is disposed of directly in the waters around the industry. Tofu wastewater treatment in this study uses a constructed wetland system of the Subsurface Flow Constructed Wetland (SSF-W) type by utilizing the yellow iris plant (Iris pseuodacorus). This study used variations in wastewater concentrations of 20%, 30% and 40% with residence times of 3, 6 and 9 days on a laboratory scale. Based on the results of the study showed the effect of giving different treatments on each test parameter. The removal efficiency of the SSF-W constructed wetland system in this study included COD parameters (82.62% - 97.77%), BOD parameters (81.67% - 97.23%) and TSS parameters (85.30% - 97.88%). The increase in the efficiency of removal of pollutant levels occurs as the residence time increases. The best removal efficiency is found in the treatment of 20% wastewater concentration with a residence time of 9 days. The removal efficiency for COD content was 97.77%, BOD content was 97.23%, and TSS content was 97.88%. In addition to testing the COD, BOD, and TSS parameters, this study also measured pH and temperature. The pH values in the study ranged from 3.3 to 7.2 and the wastewater temperature was in the range of 26.2˚C to 32.9˚C. So from the results of research on tofu wastewater treatment using the Iris pseudacorus plant with the constructed wetland SSF-W system, it has a high removal efficiency and during the research, the Iris pseudacorus plant has increased its biomass.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0523100050 |
| Uncontrolled Keywords: | Air limbah tahu, Iris pseuodacorus, Subsurface Flow Constructed Wetland (SSF-W),Tofu Waste Water, Iris pseudacorus, Subsurface Flow Constructed Wetland (SSF-W) |
| Subjects: | 600 Technology (Applied sciences) > 630 Agriculture and related technologies |
| Divisions: | Fakultas Teknologi Pertanian > Keteknikan Pertanian |
| Depositing User: | Sugeng Moelyono |
| Date Deposited: | 15 Aug 2023 06:42 |
| Last Modified: | 15 Aug 2023 06:42 |
| URI: | http://repository.ub.ac.id/id/eprint/202455 |
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