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KANDUNGAN KROMIUM (Cr) PADA GONDANG (Pila scutata) DI PERAIRAN SUNGAI RIAM KANAN KABUPATEN BANJAR
Abstract
Around Riam Kanan river, one can find mining activities and local housing. It ispredicted that those activities might generate waste contaminated with Cr, a toxic heavymetal. In this research, gondang snails (Pila scutata) were used as bioindikator to studyCr pollution in Riam Kanan area. The samples of gondang were taken from 4 stationsalong Riam Kanan, which is 2 kms from reservoir Riam Kanan, Awang Bangkal West,Mandikapau East and Karang Intan Dam. Chromium contents in the gondang samples,sediment and water bodies were analyzed Atomic Absorption Spectrophotometer. Theresult then is correlation regression SPSS version 17. Chromium content at samplegondang is some station of protactinium Cr has in concentration that is enough is height.Result of analysis shows content Cr in water territory ranges from 0,0182-0,0516 ppm,content Cr at sediment ranges from 0,1978-13,8739 ppm and at gondang (Pila scutata) inwater territory of Riam Kanan river the range of between 0,0106-1,2979 ppm. Therelation of correlation regression gondang and water has negative direction andcorrelation between gondang with sediment is positive direction.
... Beberapa penyakit yang diakibatkan oleh logam kromium (Cr) seperti alergi, peradangan, keracunan, kerusakan organ tubuh, kanker, bahkan dapat menyebabkan kematian (Rahman, 2021). ...
Synthetic dyes contain naphthol dyes, one of which contains Cr metal. tie woven wastewater treatment can be carried out using adsorption methods, one of which is using activated charcoal. This study aims to determine the effect of using coffee grounds as an adsorbent on woven textile waste. The method in this study is an experimental method in the form of Posttest Only Control Group Design. The test parameters include the degree of acidity (pH), organoleptic test, and Chromium (Cr) content test. The results showed that the pH test before contact with activated charcoal had a pH value of 5 (acid), after contact with activated charcoal the pH value became 7 (neutral). Thus, the pH value can be said to meet the quality standards of tie-weaving liquid waste. Meanwhile, in organoleptic testing, there was a change in color from black waste to clear yellow. Whereas in testing the Cr level before contact with activated charcoal reached 4.60 mg/l after the addition of a dose of activated charcoal the Cr level decreased to 0.46 mg/l, 0.22 mg/l, and 0.38 mg/l. The effectiveness of the adsorbent ability of the Cr content test in each treatment (P1, P2, P3), still meets the requirements for the quality standard of woven textile wastewater from Cr metal dyes, SNI No 06-6989-22-2004, it can be concluded that the addition of coffee grounds has an effect on of textile woven wastewater.
... Hal ini tentunya dapat mengganggu komunitas makrozoobentos yang ada di Sungai Cimanuk Lama karena ruang hidup dan interaksi biota tersebut lebih banyak di sekitar sedimen. Pencemaran Cr di sedimen telah banyak dilaporkan menyebabkan efek toksisitas yang bersifat akut maupun kronis serta menimbulkan gangguan di tingkat individu maupun komunitas bagi biota akuatik (Suprapti 2008;Gupta & Singh 2011;Rahman et al. 2012;Fu et al. 2014). ...
The residue of human activities and batik industrial waste water surrounding the river will be able to increase the accumulation of chromium and to disrupt macrozoobenthic communities in the river. The aims of this study was to assess the impact of human activities surrounding the river to the macrozoobenthic communities and the accumulation of chromium in Cimanuk Lama River, Indramayu District, West Java. The study has been conducted from AprilMay 2015 based on three times sampling at three different sampling stations. The result of this study shows that the chromium accumulated in the waters of all station still meet the standard quality ranging from 0,010-0,016 mg/l, but only station 1 fulfills the standard quality for chromium accumulated in the river sediment with the range of all stations was about 11,72-46,63 mg/kg. The results also show that the community index analysis describes the change of macrozoobenthic community at all stations caused by environmental pressure, especially at the station 2 which is indicated by the highest score of Family Biotic Index. The accumulation of the chromium in the waters and the change of macrozoobenthic community structure are mostly influenced by the use of the Cimanuk Lama river long for agricultural and fisheries activities, and also batik home industry.
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