Satwika, Danda Prasna (2020) Kajian Emisi Gas Rumah Kaca pada Upaya Penerapan Boezem Kalidami sebagai Pretreatment Air Limbah Domestik di Surabaya. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kolam retensi air hujan atau boezem selain sebagai pengendali banjir juga berpotensi sebagai unit pretreatment air limbah domestik berupa kolam stabilisasi fakultatif-anaerobik. Salah satu boezem yang berperan penting melayani Surabaya bagian timur adalah Boezem Kalidami (pintu air Kalidami). Bozem Kalidami dengan kedalaman 2 - 4 meter berpotensi menghasilkan emisi gas rumah kaca (GRK) yaitu metana (CH4) dan karbon dioksida (CO2) dalam jumlah cukup besar. Penelitian ini mencari besarnya potensi emisi CO2 dan CH4 untuk pertimbangan penerapan Boezem Kalidami sebagai unit pretreatment air limbah domestik. Pengukuran lapangan dan uji sampel air dilakukan selama 5 hari berturut-turut pada saat pergantian dari musim kemarau ke musim penghujan. Prediksi potensi emisi CO2 dan CH4 menggunakan pendekatan stoikiometri terhadap hasil uji sampel air Boezem Kalidami menggunakan metode Greenhouse Gas Emissions Estimation Methodologies tahun 2010 oleh US EPA. Prediksi emisi menggunakan 2 skenario reduksi. Skenario pertama yaitu dengan pemanfaatan potensi alga alami boezem pada kondisi eksisting didapatkan 192,466 ton CO2/ tahun dan 75,820 ton CH4/ tahun. Sedangkan skenario kedua yaitu dengan perencanaan periode pengerukan didapatkan emisi sebesar 195,102 ton CO2/ tahun dan 75,820 ton CH4/ tahun. Pada upaya reduksi CO2 skenario pertama dengan memanfaatkan alga yang tumbuh alami di boezem, didapatkan laju serapan CO2 (fiksasi) sebesar 10,33 kg/hari dan reduksi CO2 sebesar 1,96% per hari. Sedangkan upaya reduksi CH4 pada skenario kedua dengan merencanakan periode pengerukan lumpur didapatkan reduksi sebesar 13,7% per tahun pada periode pengerukan lumpur tiap 50 hari sekali dengan kebutuhan 124 ritasi truk berkapasitas 6m3 pada setiap pengerukan.
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Retention pond or boezem can be used as both flood control and pretreatment unit for domestic wastewater. Boezem is able to be equally identified as stabilization pond type facultative anaerobic. One boezem which has significant role to east region of Surabaya is Kalidami Boezem (Kalidami watergate). Kalidami Boezem has average depth 2 - 4 meter and potentially produce significant amount of greenhouse gas emission, which are carbon dioxide (CO2) and one primarily needed to notice, methane (CH4). Within this project, author will estimate gross greenhouse gas emission (potential emission), which are CO2 and CH4, form Kalidami Boezem. Result of this CO2 and CH4 emission estimation then to be used as consideration before using Kalidami Boezem as pretreatment of domestic wastewater in Surabaya. Field measurement and water sample analysis are done in 5 days consecutively, when interseasonal month from dry to rain season occurs (late November to early December). Gross predictions (estimations) of greenhouse gas emission are able to be done using stoichiometry approaching of the result from water sample parameter analysis of Kalidami Boezem using Greenhouse Gas Emissions Estimation Methodologies of year 2010 compiled by US EPA. Predictions of CO2 and CH4 emission are done using 2 reduction scenario. Gross emission estimation obtained from first scenario which is utilizing naturally growth algae on boezem were 192,466 ton CO2/ year and 75,820 ton CH4/ year. While gross emission estimation obtained from second scenario which is planning on sludge dredging period were of 195,102 ton CO2/ year and 75,820 ton CH4/ year. iv Reduction effort of CO2 by utilizing naturally grown algae on boezem with CO2 fixation rate of 10,33 kg/day resulting in CO2 reduction around 1,96%/day on existing condition. Meanwhile, reduction effort of CH4 by planning on sludge dredging period resulting in reduction of CH4 around 13,7%/year, with sludge dredging period every 50 days and 124 ritation of 6m3 truck needed on each sludge dredging.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSL 628.3 Sat k-1 |
| Uncontrolled Keywords: | Air Limbah Domestik, Emisi, Karbon Dioksida, Kolam Stabilisasi, Metana, Reduksi |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD171.75 Climate change mitigation T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification T Technology > TD Environmental technology. Sanitary engineering > TD756.45 Anaerobic treatment |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Danda Prasna Satwika |
| Date Deposited: | 27 Apr 2023 03:23 |
| Last Modified: | 27 Apr 2023 03:23 |
| URI: | http://repository.its.ac.id/id/eprint/73586 |
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