Vebriane, Wenny (2014) Pengaruh Penambahan Cacing Akuatik Terhadap Konsentrasi Nitrogen dan Fosfor dalam Proses Reduksi Lumpur Limbah. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pembentukan lumpur biologis merupakan masalah yang
tidak bisa dihindari dalam pengolahan air limbah secara biologis.
Penggunaan cacing akuatik merupakan alternatif untuk
meminimisasi jumlah lumpur biologis yang dihasilkan dari suatu
instalasi pengolahan air limbah. Tetapi, pelepasan nutrien pada
effluen dilaporkan sebagai salah satu kerugian reduksi lumpur
menggunakan cacing akuatik. Oleh karena itu, penelitian ini
bertujuan untuk mengkaji perubahan konsentrasi nitrogen dan
fosfor dalam proses reduksi lumpur dengan cacing akuatik.
Penelitian ini dilakukan dalam skala laboratorium
menggunakan reaktor cacing dengan sistem batch selama 7 hari.
Variabel yang digunakan dalam penelitian ini adalah jenis cacing
akuatik dan rasio worm/sludge (w/s). Parameter yang dianalisis
adalah total nitrogen (TN), total fosfor (TP), DO, pH, dan suhu.
Hasil penelitian menunjukkan bahwa penambahan cacing
akuatik dapat menurunkan TN dan TP dalam lumpur. Rata-rata
penyisihan TN dan TP tertinggi dalam lumpur untuk Tubifex sp.
sebesar 26% dan 11% lebih tinggi daripada reaktor tanpa cacing
pada w/s 0,6 sedangkan untuk Lumbriculus sp. sebesar 13% dan
9% pada w/s 0,4. Penambahan cacing akuatik juga meningkatkan
konsentrasi TN dan TP pada air dengan laju pelepasan 0,011 mg-
TN/mg-Tubifex hari; 0,005 mg-TP/mg-Tubifex hari; 0,007 mg-
TN/mg-Lumbriculus hari; 0,0014 mg-TP/mg-Lumbriculus hari.
Kata kunci : Cacing akuatik, reduksi lumpur limbah, total
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Waste sludge production is an avoidable problem from
biological wastewater treatment process. Application of aquatic
worm is an alternative to minimize the amount of biological
waste sludge produced in wastewater treatment plants. However
the nutrient release into effluent is reported as one of the main
disadvantage of sludge reduction induced by aquatic worm.
Therefore the aim of this research is to determine the changes of
nitrogen and phosphorus concentrations during sludge reduction
process using aquatic worm.
This research was conducted in lab-scale with batch
worm reactor system for 7 days. The variables used in this
research were aquatic worm types and worm to sludge ratio (w/s).
Parameters used in this research were total nitrogen (TN) and
total phosphorus (TP), DO, pH, and temperature.
The results showed that the addition of aquatic worm
during sludge reduction may decrease TN and TP concentration
in sludge. The highest average TN and TP removals in sludge for
Tubifex sp. were 26% and 11% higher than the reactor without
worms on the w/s 0,6 meanwhile TN and TP removals for
Lumbriculus sp. were 13% and 9% on the w/s 0,4. On the other
hand, the addition of aquatic worms also increases the TN and TP
concentration in the water with release rate 0.011 mg-TN/mg-
Tubifex day; 0.005 mg-TP/mg-Tubifex day; 0.007 mg-TN/mg-
Lumbriculus day; 0.0014 mg-TP/mg-Lumbriculus day.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSL 628.354 Veb p 3100014056884 |
| Uncontrolled Keywords: | Cacing akuatik, reduksi lumpur limbah, total fosfor, total nitrogen. |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD767.7 Sewage sludge treatment and disposal |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Yeni Anita Gonti |
| Date Deposited: | 29 Sep 2020 07:25 |
| Last Modified: | 29 Sep 2020 07:25 |
| URI: | http://repository.its.ac.id/id/eprint/82049 |
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