EVALUASI KUALITAS AIR SUNGAI BUKIT TUJUH DI DESA BUKIT TUJUH KECAMATAN TORGAMBA KABUPATEN LABUHANBATU SELATAN

Saragih, Sri Yuningsih (2015) EVALUASI KUALITAS AIR SUNGAI BUKIT TUJUH DI DESA BUKIT TUJUH KECAMATAN TORGAMBA KABUPATEN LABUHANBATU SELATAN. Undergraduate thesis, UNIMED.

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Abstract

Penelitian ini bertujuan untuk mengetahui (1) Debit air Sungai Bukit Tujuh; (2) Karakteristik air Sungai Bukit Tujuh dilihat dari sifat fisik (suhu, TSS) dan kimia (pH, BOD, COD, dan NH3N); (3) Kondisi kualitas air Sungai Bukit Tujuh untuk keperuntukkan berdasarkan baku mutu air menurut PP No. 82 Tahun 2001 yang dilihat dari parameter fisika (suhu, TSS) dan parameter kimia (pH, BOD, COD, dan NH3N); (4) Tingkat pencemaran air Sungai Bukit Tujuh berdasarkan Keputusan Menteri Lingkungan Hidup No. 115 Tahun 2003. Penelitian ini dilakukan di Sungai Bukit Tujuh pada tanggal 20 Januari 2015. Populasi dalam penelitian ini adalah air Sungai Bukit Tujuh. Teknik sampel yang digunakan adalah sampel gabungan (Composite Sampling). Teknik pengumpulan data yang digunakan dalam penelitian ini adalah observasi dan pengukuran. Teknik analisis data yang digunakan adalah teknik analisis deskriptif dan alisisis laboratorium. Hasil penelitian menunjukkan bahwa (1) Debit air Sungai Bukit Tujuh pada pagi hari adalah 4,92 m3/s dan siang hari menjadi 5,03 m3/s; (2) Karakteristik air Sungai Bukit Tujuh adalah sebagai berikut: Rata-rata suhu air Sungai Bukit Tujuh yaitu pada pagi hari 25,10ºC dan siang hari 26,07 ºC, Titik tertinggi nilai TSS air Sungai Bukit Tujuh yaitu 20 mg/l dan masih sesuai dengan baku mutu air Kelas I menurut PP No. 82 Tahun 2001, Rata-rata pH air sungai pada pagi dan siang hari 6,21 dan 6,09, dan nilai NH3N dari hulu sampai hilir masih sesuai dengan baku mutu air Kelas I, sementara nilai BOD dari hulu sampai hilir telah melewati baku mutu air Kelas II. Nilai tertinggi COD yaitu 13,3 mg/l telah melewati baku mutu air Kelas I; (3) Kondisi air Sungai Bukit termasuk dalam kriteria air Kelas III; (4) Tingkat pencemaran (IP) Sungai Bukit Tujuh dari daerah hulu sampai hilir sungai tergolong cemar ringan dengan Indeks Pencemaran antara 1,1 – 5,0. Penggolongan ini didasarkan menurut Keputusan Menteri Negara Lingkungan Hidup No.115 Tahun 2003.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorSidauruk, Tumiar196301271987032002
Call Number: SK-2015 GEO 071
Keywords: Sungai, Limbah Cair Industri Sawit, COD
Subjects: G Geography. Anthropology. Recreation > GB Physical geography > GB651 Hydrology. Water
G Geography. Anthropology. Recreation > GB Physical geography > GB651 Hydrology. Water > GB980 Ground and surface waters > GB981 Watersheds. Runoff. Drainage
Divisions: Fakultas Ilmu Sosial > Pendidikan Geografi
Depositing User: Mr Maknun
Date Deposited: 17 Dec 2016 03:16
URI: http://digilib.unimed.ac.id/id/eprint/22150

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