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ELIMINASI LOGAM Cu OLEH SERASAH Avicennia marina DI LINGKUNGAN TAMBAK BANDENG WILAYAH TAPAK TUGUREJO, SEMARANG (Cu Metal Elimination by Avicennia marina Litter Leaf in the Environment of Milkfish Fishpond in Tapak Village, Tugurejo Semarang)

https://doi.org/10.22146/jml.18800

Nana Kariada Tri Martuti(1*), Budi Widianarko(2), Bambang Yulianto(3)

(1) Program Doktor Ilmu Lingkungan, Program Pasca Sarjana, Universitas Diponegoro, Jl. Imam Bardjo, SH No. 3 - 5, Pleburan, Semarang 50241.
(2) Jurusan Teknologi Pangan, Fakultas Teknologi Pertanian, Universitas Katolik Soegijapranata, Jl. Pawiyatan Luhur IV/1, Bendan Dhuwur, Semarang 50234.
(3) Jurusan Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof. H. Soedarto, S.H, Tembalang, Semarang 50275.
(*) Corresponding Author

Abstract


ABSTRAK

Serasah mempunyai peran penting dalam transfer logam dari tanaman ke dalam media lingkungan hidupnya. Tujuan penelitian mengkaji tingkat eliminasi logam Cu melalui proses defoliasi serasah daun Avicennia marina di tambak bandeng. Bahan penelitian terdiri dari air dan sedimen tambak serta serasah daun mangrove dari jenis A. marina. Destruksi logam Cu pada air, sedimen dan serasah menggunakan Tefflon bomb extraction, dilanjutkan dengan pengukuran logam Cu menggunakan AAS. Penelitian dilakukan selama 90 hari pada tambak bandeng wilayah Tapak Semarang, di dalamnya terdapat tumbuhan mangrove A. marina. Kadar logam Cu pada air tambak penelitian antara 0,02±0,007 - 0,05±0,008 mg/L. Konsentrasi logam Cu pada sedimen tambak penelitian berkisar antara 15,20±1,77 - 25,03 ±4,77 mg/kg, Faktor Konsentrasi (FK) air dan sedimen tambak penelitian antara 500.52 - 897,70. Serasah daun A. marina mengandung logam Cu 2,346±0,536 – 5,285±2,091 mg/kg. Hasil penelitian menunjukkan terdapat kemampuan serasah A. marina dalam mengembalikan logam Cu ke lingkungan hidupnya. Perbandingan antara serasah dengan air dan sedimen menunjukkan bahwa kemampuan serasah dalam mengembalikan Cu ke perairan (46,92 - 228,72) lebih besar dari pada ke sedimen lingkungan hidupnya (0,094 - 0,318).


ABSTRACT

Avicennia marina litter plays an important role in the heavy metal transfer from the plant into its environment. It occurs due to its ability in eliminating the metal from its tissue, as its adaptation to metal – polluted environment. The purpose of this research was to examine the elimination level of Cu through a defoliation process of A. marina into milkfish pond. The objects of the research were water, sediment and A. marina litter. The destruction of Cu in water, sediment and litter was accomplished using Tefflon bomb extraction, followed by measurement of Cu using AAS. The study was conducted in milkfish pond in Tapak region at Semarang city for 90 days, in which the A. marina plants grow. The value of copper content in the water pond was between 0.02 ± 0.007 to 0.05 ± 0.008 mg / L. The concentration of Cu in the sediment ranged from 15.20 ± 1.77 to 25.03 ± 4.77 mg / kg, the concentration factor (CF) of water and waste sediment with water and sediment ranged from 500.52 - 897, 70. The content of Cu in A. marina litter was 2.346 ± 0.536 to 5.285 ± 2.091 mg / kg. The result of the research showed the ability of A. marina litter to reconstruct copper to its environment. The comparison between the ability of A. marina litter to reinstate Cu to water (46.92 to 228.72) is greater than that of the sediment to its environment (.094-.318).



Keywords


Avicennia marina; eliminasi; logam berat; polutan; serasah; tembaga; copper; elimination; heavy metals; pollutants; litter



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DOI: https://doi.org/10.22146/jml.18800

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