Perencanaan Pengelolaan Lumpur Skala Kecil IPAL Domestik Tidak Terakses Pengurasan Kota Malang

Maysitha, Aliyah Devi (2021) Perencanaan Pengelolaan Lumpur Skala Kecil IPAL Domestik Tidak Terakses Pengurasan Kota Malang. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

IPAL domestik di Kota Malang berjumlah 102 bangunan tersebar di seluruh kecamatan. Hampir seluruh IPAL domestik memiliki masalah dalam pengurasan lumpur yang seharusnya rutin dilakukan 6 bulan sekali. Penyebab utamanya adalah akses jalan masuk kendaraan pengangkut lumpur tinja yang sulit. Hal ini sangat berbahaya karena lumpur tinja mengandung patogen dan pencemar tinggi sehingga dapat mencemari air sungai maupun air tanah. Berdasarkan permasalahan tersebut, IPAL domestik Kota Malang memerlukan pengelolaan lumpur yang lebih terencana. Pengelolaan lumpur meliputi pengurasan, pengangkutan, dan pengolahan lumpur. Selain itu, akan dilakukan perhitungan biaya operasional dan perawatan untuk lebih mempersiapkan rencana pengadaan dana sebelum merealisasikannya. Dalam penelitian ini penentuan IPAL tidak terakses berdasarkan beberapa faktor yaitu lebar jalan, medan jalan dan jarak tidak terakses pengangkutan oleh truk. IPAL tidak terakses di Kota Malang terbagi menjadi 3 macam yaitu IPAL 100 KK yang dibangun sebelum tahun 2018, IPAL 100 KK yang dibangun pada tahun 2018, dan IPAL 10 KK. Kemudian sampel diambil sebanyak 2 IPAL dari setiap jenis IPAL. IPAL yang direncanakan adalah IPAL Anugerah II, Asam Manis, Bandulan Kompak, Grasak, Mulyajaya, dan Genitri. Dari hasil penentuan tersebut, IPAL dapat dibedakan kembali dari ketersediaan lahannya. Pengambilan data dilakukan dengan pengamatan lapangan dan wawancara terstruktur. Waktu pengurasan direncanakan berdasarkan produksi lumpur dari setiap unit yaitu bak pengendap dan bak Anaerobic Baffled Reactor (ABR) yang kemudian dibandingkan dengan volume ruang lumpurnya. Sarana pengangkutan lumpur direncanakan berdasarkan medan dan kondisi jalan di sekitar IPAL hingga jalan besar terdekat. Unit pengolahan lumpur (dewatering) direncanakan berdasarkan ketersediaan lahan dan volume lumpur yang dikuras. IPAL yang dapat merealisasikan perawatannya hanya IPAL Anugerah II, Asam Manis, dan Genitri. Perencanaan pengolahan lumpur pada IPAL yang memiliki lahan kosong berupa pembangunan bak pengering lumpur. Kemudian ditambahkan tandon pengering lumpur. Sedangkan pada IPAL yang tidak memiliki lahan kosong direncanakan tandon pengering lumpur saja. Biaya pengelolaan lumpur yang dibutuhkan setiap IPAL terdiri atas biaya setiap pengurasan dan biaya setiap tahun. Biaya setiap pengurasan terdiri atas biaya jasa pengurasan dan bahan bakar pompa. Sedangkan biaya setiap tahun terdiri atas biaya penggantian oli pompa dan penggantian media unit pengering lumpur. Rata – rata biaya perawatan yang dibutuhkan setiap tahun sekitar Rp. 10.000.000. ===================================================================================================== Malang has 102 units of Domestic Wastewater Treatment Plant (WWTPs) spread across all sub-districts. Almost all domestic WWTPs have problems in draining sludge which should be routinely carried out every 6 months. The main reason is the difficult access for vehicle to transporting sludge. This is very concerning because fecal sludge contains high levels of pathogens and pollutants, it can contaminate river and ground water. Based on these problems, Malang City's domestic WWTP requires a more planned sludge management. Sludge management includes draining, transporting, and treating sludge. In addition, operational and maintenance costs will be calculated. In this study, the determination of inaccessible WWTPs was based on several factors i.e., the width of the road, the terrain and the distance not accessible road by trucks. Inaccessible WWTPs in Malang are divided into 3 types i.e., WWTPs of 100 KK which were built before 2018, WWTPs of 100 KK which were built in 2018, and WWTPs of 10 KK. Then samples were taken 2 WWTPs from each type. The planned WWTPs are Anugerah II IPAL, Asam Manis, Bandulan Kompak, Grasak, Mulyajaya, and Genitri. From the results of the determination, WWTPs can be differentiate again from the availability of land. Data collection was collected by field observations and structured interviews. The planned drain time is based on the sludge production from the settling tank and the Anaerobic Baffled Reactor (ABR) tank. Then, it compared with the volume of the sludge chamber. The sludge transporting is planned based on the terrain and road conditions around the WWTP to the nearest major road. The sludge treatment unit (dewatering) is planned based on the availability of land and the volume of sludge being drained. IPALs who can implement their SOPs are Anugerah II, Asam Manis, and Genitri. Sludge treatment for WWTPs that have vacant land use sludge drying bed and sludge drying tank. Meanwhile, for WWTPs that do not have vacant land, only sludge drying tank are planned. The sludge management fee required for each WWTP consists of the cost of each drain and the annual cost. The cost of each drain consists of the cost for dewatering services and pump fuel. Meanwhile, the annual cost consists of the cost to replacing the pump oil and replacing the media for the sludge drying unit. The average maintenance cost required annually is around Rp. 10,000,000.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: ABR, Bak Pengendap, Dewatering, Lumpur, Pengolahan ABR, Dewatering, Sedimentation Tank, Sludge, Treatment
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD756.45 Anaerobic treatment
T Technology > TD Environmental technology. Sanitary engineering > TD767.7 Sewage sludge treatment and disposal
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User: Aliyah Devi Maysitha
Date Deposited: 13 Aug 2021 03:44
Last Modified: 13 Aug 2021 03:44
URI: https://repository.its.ac.id/id/eprint/85494

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