HAQUE, MAHARANI ZAHIRATUN (2023) DAMPAK PEMBUANGAN LIMBAH INDUSTRI BATU ANDESIT TERHADAP KUALITAS AIR SUNGAI JAMBLANG, KABUPATEN CIREBON (23dsa474). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

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Abstract

ABSTRAK
(Maharani Zahiratun Haque. 26010118130089. Dampak Pembuangan
Limbah Industri Batu Andesit Terhadap Kualitas Air Sungai Jamblang, Kabupaten
Cirebon. Norma Afiati dan Oktavianto Eko Jati).
Batu alam yang diproduksi industri di sekitar sungai Jamblang salah satunya
adalah batu andesit. Meskipun memiliki nilai ekonomis namun pemrosesan batu
alam menjadi barang jual memiliki dampak negatif ke lingkungan terutama air
sungai. Sungai yang terdampak yaitu sungai Jamblang. Akibatnya warna air sungai
menjadi sangat keruh berwarna keabu-abuan. Hal ini dikhawatirkan dapat
memengaruhi kualitas air sungai dan dengan demikian biota yang hidup di
dalamnya. Biota yang diteliti yaitu plankton dan diatom. Plankton khususnya
diatom membutuhkan silika sebagai penyusun dinding sel. Silika ditemukan bebas
di alam dan salah satunya dapat ditemukan pada batu andesit karena komponen
utama penyusun batu andesit adalah silika. Penelitian dilakukan pada 4 lokasi di
sepanjang sungai Jamblang dari hulu hingga hilir pada bulan Desember 2022.
Lokasi 1 (upstream) sebelum sumber pencemar industri batu alam, lokasi 2
(upstream) sebagai sumber pencemar, lokasi 3 (middle stream) setelah sumber
pencemar namun masih mendapat pengaruhnya, dan lokasi 4 (downstream) jauh
dari sumber pencemar. Didapatkan bahwa lokasi 2 memiliki kadar silika serta
kelimpahan plankton dan diatom terendah. Lokasi 2 juga memiliki angka TSS
paling tinggi sebesar 856 mg/l yang tidak sesuai baku mutu Peraturan Pemerintah
Republik Indonesia No. 22 Tahun 2021, lampiran VI. Kadar silika di setiap lokasi
tidak berbeda jauh namun kelimpahan plankton dan diatom ditemukan paling
rendah di lokasi 2 diduga adanya pengaruh TSS yang tinggi. Hal tersebut dibuktikan
dengan uji statistik pada lampiran 10 yang menunjukkan adanya pengaruh TSS
terhadap kelimpahan plankton di air dan diatom di batuan.
Kata kunci : Diatom, Plankton, Silika, TSS

ABSTRACT
(Maharani Zahiratun Haque. 26010118130089. Impact of Andesite Stone
Industry Waste Disposal on Water Quality of Jamblang River, Cirebon Regency.
(Norma Afiati dan & Oktavianto Eko Jati).
One of the natural stones produced by industry around the Jamblang river is
andesite. Although it has economic value, the processing of natural stone into
selling goods has a negative impact on the environment, especially river water. The
affected is the Jamblang river. As a result, the color of the river water becomes very
turbid grayish in color. It is feared that it can affect the quality of water and thus
the biota that lives in it. The biota studied are plankton and diatoms. Plankton,
especially diatoms, require silica as a constituent of cell walls. Silica is found free
in nature and one of them can be found in andesite rock because the main
constituent component of andesite stone is silica. The study was conducted at 4
locations along the Jamblang river from upstream to downstream in December
2022. Location 1 (upstream) before the polluting source of the natural stone
industry, location 2 (upstream) as a polluting source, location 3 (middle stream)
after the polluting source but still under its influence, and location 4 (downstream)
far from the polluting source. It was found that location 2 had the lowest silica
levels and abundance of plankton and diatoms. Location 2 also has the highest TSS
number of 856 mg/l which does not meet the quality standards of Government
Regulation of the Republic of Indonesia No. 22 of 2021, annex VI. Silica levels at
each location did not differ much, but the abundance of plankton and diatoms was
found to be lowest at location 2, suspected of high TSS influence. This is evidenced
by statistical tests in appendix 10 which show the influence of TSS on the abundance
of plankton in water and diatoms in rocks.
.
Keywords : Diatoms, Plankton, Silica, TSS

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