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EVALUASI KAPASITAS KOLAM PENGENDAPAN SERIWANG DAN
SELANTING TERHADAP RANCANGAN TATA GUNA LAHAN TAHUN
2016 – 2021 PADA TAMBANG BATUBARA PT. KALTIM PRIMA COAL,
KECAMATAN BENGALON, KABUPATEN KUTAI TIMUR,
PROVINSI KALIMANTAN TIMUR
Oleh :
Rahel Pamian
114120045
INTISARI
PT. Kaltim Prima Coal memiliki rancangan tata guna lahan tahun 2016 – 2021 untuk
Daerah Tangkapan Hujan Tiung dan Seriwang yang harus dievaluasi untuk
mengetahui kelayakan daya tampung Kolam Selanting dan Seriwang. Tujuan dari
penelitian ini adalah untuk mengetahui seberapa besar debit limpasan dan laju erosi,
mengevaluasi kapasitas kolam terhadap nilai output TSS, dan merancangkan teknik
pengolahan yang dapat dilakukan untuk menurunkan nilai output TSS akibat
perubahan tata guna lahan tersebut.
Parameter yang dibutuhkan yaitu tekstur dan jenis tanah, kemiringan lereng, curah
hujan, penggunaan lahan, dan vegetasi. Metode penelitian adalah survei, teknik
pengambilan sampel dengan purposive sampling dan grab sampling, pengumpulan
data primer dan sekunder, analisis secara matematis menggunakan Hukum Stokes
untuk mencari kecepatan pengendapan, Metode MUSLE mencari laju erosi, debit
maksimum dengan Metode Nakayasu, serta analisis laboratorium menggunakan
Metode Hidrometer dan Sieve. Teknik Evaluasi menggunakan evaluasi deskriptif
developmental dengan Trap Effisiensi.
Hasil penelitian menunjukan pengaruh positif dari uji regresi linier antara tata guna
lahan terhadap nilai debit limpasan dan laju erosi dengan persamaan presentase diatas
95%. Estimasi TSS sangat jauh dari standar baku mutu dalam Peraturan Daerah
Provinsi Kalimantan Timur Nomor 02 Tahun 2011 Tentang Pengelolaan Kualitas Air
dan Pengendalian Pencemaran Air yaitu 8.597,64 mg/tahun 2016 dan semakin tahun
semakin meningkat. Oleh sebab itu dirancangkan teknik pengelolaan berupa inovasi
Kolam Seriwang, pemanfaatan lumpur sebagai bahan bangunan, dan pembuatan
penyaring lumpur di dumping area.
Kata Kunci : Kolam Pengendapan, Tata Guna Lahan, Laju Erosi, Debit Maksimum,
Estimasi TSS.
ii
CAPASITY EVALUATION OF SELANTING AND SERIWANG PONDS OF
LANDUSE DESIGN IN 2016 – 2021 AT PT. KALTIM PRIMA COAL,
BENGALON, KUTAI TIMUR, EAST BORNEO PROVINCE
By :
Rahel Pamian
114120045
ABSTRACT
PT . Kaltim Prima Coal has landuse design in 2016 – 2021 for Tiung and Seriwang
Catchments that must be evaluated to determine the feasibility of Seriwang and
Selanting capacity ponds. The purpose are to determine how much discharge runoff
and erosion, evalute of an output value of TSS, and design processing technique that
can be done to lower the output value of TSS as impacts of the change in landuse.
Parameters are type and texture of soil, slope, rainfall, landuse, and alum consumption.
Research method is survey, sampling method are purposive sampling and grab
sampling, primary and secondary data are needed, mathematic analysis of
sedimentation velocity used Stokes Law, erosion analysis used MUSLE, debit
maximum used Nakayasu, and laboratory analysis used Hydrometer and Sieve.
Evaluation method used descriptive development evaluation with trap efficiency .
The result showed a positive effect of linear regression between land use to the value
of discharge runoff and erosion rate with a percentage above 95%. Estimation of TSS
are far from the quality standards specified in East Borneo Provinvce Regulation No.
02 in 2011 about Water Quality Management and Water Pollution Control, one of
them is 8597.64 mg in 2016 and increases further years. Therefore, management
techniques are innovation in Seriwang Pond, using of mud as a building material, and
manufacture of filter mud in the dumping area.
Keywords :Settling Pond, Landuse, Erosion Velocity , Runoff Debit, TSS Estimation.

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Abstract

  • 1. i EVALUASI KAPASITAS KOLAM PENGENDAPAN SERIWANG DAN SELANTING TERHADAP RANCANGAN TATA GUNA LAHAN TAHUN 2016 – 2021 PADA TAMBANG BATUBARA PT. KALTIM PRIMA COAL, KECAMATAN BENGALON, KABUPATEN KUTAI TIMUR, PROVINSI KALIMANTAN TIMUR Oleh : Rahel Pamian 114120045 INTISARI PT. Kaltim Prima Coal memiliki rancangan tata guna lahan tahun 2016 – 2021 untuk Daerah Tangkapan Hujan Tiung dan Seriwang yang harus dievaluasi untuk mengetahui kelayakan daya tampung Kolam Selanting dan Seriwang. Tujuan dari penelitian ini adalah untuk mengetahui seberapa besar debit limpasan dan laju erosi, mengevaluasi kapasitas kolam terhadap nilai output TSS, dan merancangkan teknik pengolahan yang dapat dilakukan untuk menurunkan nilai output TSS akibat perubahan tata guna lahan tersebut. Parameter yang dibutuhkan yaitu tekstur dan jenis tanah, kemiringan lereng, curah hujan, penggunaan lahan, dan vegetasi. Metode penelitian adalah survei, teknik pengambilan sampel dengan purposive sampling dan grab sampling, pengumpulan data primer dan sekunder, analisis secara matematis menggunakan Hukum Stokes untuk mencari kecepatan pengendapan, Metode MUSLE mencari laju erosi, debit maksimum dengan Metode Nakayasu, serta analisis laboratorium menggunakan Metode Hidrometer dan Sieve. Teknik Evaluasi menggunakan evaluasi deskriptif developmental dengan Trap Effisiensi. Hasil penelitian menunjukan pengaruh positif dari uji regresi linier antara tata guna lahan terhadap nilai debit limpasan dan laju erosi dengan persamaan presentase diatas 95%. Estimasi TSS sangat jauh dari standar baku mutu dalam Peraturan Daerah Provinsi Kalimantan Timur Nomor 02 Tahun 2011 Tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air yaitu 8.597,64 mg/tahun 2016 dan semakin tahun semakin meningkat. Oleh sebab itu dirancangkan teknik pengelolaan berupa inovasi Kolam Seriwang, pemanfaatan lumpur sebagai bahan bangunan, dan pembuatan penyaring lumpur di dumping area. Kata Kunci : Kolam Pengendapan, Tata Guna Lahan, Laju Erosi, Debit Maksimum, Estimasi TSS.
  • 2. ii CAPASITY EVALUATION OF SELANTING AND SERIWANG PONDS OF LANDUSE DESIGN IN 2016 – 2021 AT PT. KALTIM PRIMA COAL, BENGALON, KUTAI TIMUR, EAST BORNEO PROVINCE By : Rahel Pamian 114120045 ABSTRACT PT . Kaltim Prima Coal has landuse design in 2016 – 2021 for Tiung and Seriwang Catchments that must be evaluated to determine the feasibility of Seriwang and Selanting capacity ponds. The purpose are to determine how much discharge runoff and erosion, evalute of an output value of TSS, and design processing technique that can be done to lower the output value of TSS as impacts of the change in landuse. Parameters are type and texture of soil, slope, rainfall, landuse, and alum consumption. Research method is survey, sampling method are purposive sampling and grab sampling, primary and secondary data are needed, mathematic analysis of sedimentation velocity used Stokes Law, erosion analysis used MUSLE, debit maximum used Nakayasu, and laboratory analysis used Hydrometer and Sieve. Evaluation method used descriptive development evaluation with trap efficiency . The result showed a positive effect of linear regression between land use to the value of discharge runoff and erosion rate with a percentage above 95%. Estimation of TSS are far from the quality standards specified in East Borneo Provinvce Regulation No. 02 in 2011 about Water Quality Management and Water Pollution Control, one of them is 8597.64 mg in 2016 and increases further years. Therefore, management techniques are innovation in Seriwang Pond, using of mud as a building material, and manufacture of filter mud in the dumping area. Keywords :Settling Pond, Landuse, Erosion Velocity , Runoff Debit, TSS Estimation.