Studi Pemanfaatan Lumpur Kering Dari Drying Area IPLT Betoyoguci Sebagai Paving Block

Zakaria, Regy Zaid (2025) Studi Pemanfaatan Lumpur Kering Dari Drying Area IPLT Betoyoguci Sebagai Paving Block. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

IPLT Betoyoguci merupakan fasilitas pengolahan limbah domestik yang tiap tahunnya menghasilkan 1,210 m3 lumpur kering. Besarnya lumpur kering yang dihasilkan, tidak sebanding dengan pemasukan serta pemanfaatan yang dilakukan. Pemanfaatan lumpur kering sebatas sebagai pupuk dan tanah penutup Tempat Pemrosesan Akhir (TPA) Ngipik. Saat ini dibutuhkan alternatif pemanfaatan lumpur kering yang menghasilkan nilai ekonomis lebih tinggi. Penelitian ini bertujuan mendapatkan potensi pemanfaatan lumpur kering IPLT Betoyoguci sebagai paving block. Penelitian ini memvariasikan komposisi lumpur kering sebagai campuran pembuatan paving block dengan variasi 20%, 30%, 40%, 50%, 60%, dan 70%. Variasi komposisi lumpur kering diaplikasikan dalam mortar 5 x 5 x 5 cm lalu dilakukan uji kuat tekan, uji ketahanan aus, dan uji penyerapan air. Penelitian dilanjutkan dengan membuat paving block bentuk balok ukuran 21 x 10 x 6 cm dan segi enam ukuran 30 x 24 x 6 cm untuk mengetahui pengaruh perbedaan bentuk terhadap mutu paving block. Penelitian ini juga melakukan uji XRF dan FTIR untuk mengetahui karakteristik material pembentuk pada paving block. Hal ini bertujuan mengetahui pengaruh variasi campuran terhadap kualitas mutu paving block. Hasil penelitian didapatkan mortar K5 merupakan variasi campuran terbaik dengan kadar semen 40%, pasir 40%, dan lumpur kering 20% memiliki hasil kuat tekan 4,98 MPa, penyerapan air 14%, dan ketahanan aus 0,127 mm/menit. Bentuk segi enam menghasilkan paving block terbaik dengan mutu B. Kekuatan tekan sebesar 34 MPa, penyerapan air 10%, dan ketahanan aus 0,072 mm/menit. Karakteristik material didapatkan bahwa dalam lumpur kering mengandung komponen pozolan 68,8% sementara komponen penghambat pozolan 18,76%. Adanya penambahan semen mengandung CaO, SiO2, Fe2O3, dan Al2O3 dalam konsentrasi standar, menghasilkan variasi terbaik K5 dengan komponen pozolan 92,93% sementara komponen penghambat pozolan menurun sebesar 4,56%.
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Betoyoguci STP is a domestic waste treatment facility that annually produces 1,210 m3 of dry sludge. The amount of dry sludge produced is not proportional to its input and utilisation. The utilisation of dry sludge is limited to fertiliser and soil cover for Ngipik landfill. Currently, there is a need for alternative utilisation of dry sludge that produces higher economic value. This study aims to investigate the potential utilisation of Betoyoguci sewage treatment plant dry sludge as paving blocks. This research varies the composition of dry sludge as a mixture for making paving blocks with variations of 20%, 30%, 40%, 50%, 60%, and 70%. Variations of dry sludge composition were applied in 5 x 5 x 5 cm mortars and then conducted compressive strength test, wear resistance test, and water absorption test. The research continued by making block-shaped paving blocks measuring 21 x 10 x 6 cm and hexagons measuring 30 x 24 x 6 cm to determine the effect of different shapes on the quality of paving blocks. This research also conducted XRF and FTIR tests to determine the characteristics of the forming material in the paving block. This aims to determine the effect of mixture variations on the quality of paving block. The results of this study showed that mortar K5 is the best mix variation with 40% cement, 40% sand, and 20% dry mud, which has a compressive strength of 4,98 MPa, water absorption of 14%, and wear resistance of 0,127 mm/min. The hexagon shape produces the best paving block with quality B. The compressive strength was 34 MPa, water absorption was 10%, and wear resistance was 0,072 mm/min. Material characteristics showed that the dry sludge contained 68,8% pozolanic component while 18,76% pozolanic inhibitory component. The addition of cement contained CaO, SiO2, Fe2O3, and Al2O3 in standard concentrations, resulting in the best variation K5 with 92,93% pozolanic component while the pozolanic inhibitory component decreased by 4,56%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Betoyoguci SSTP, Dry Sludge, Paving Block, Compressive Strength, Material Characteristics
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD767.7 Sewage sludge treatment and disposal T Technology > TD Environmental technology. Sanitary engineering > TD794.5 Recycling (Waste, etc.)
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Regy Zaid Zakaria
Date Deposited:	24 Jul 2025 09:07
Last Modified:	24 Jul 2025 09:07
URI:	http://repository.its.ac.id/id/eprint/121333

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