Kualitas Air pada Puncak Musim Kemarau di Daerah Rawa Danau Kabupaten Serang

Priyo Hartanto, Robert M Delinom, Hendarmawan Hendarmawan

Abstract


Rawa Danau Serang merupakan rawa pegunungan yang menjadi andalan pemasok air di kawasan industri Cilegon dan sekitarnya. Selain air hujan, pasokan air ke Rawa Danau juga berasal dari mataair gunungapi di sekitarnya. Sumber air yang ada terdiri dari mataair, mataair panas, sumur gali, sumur bor dan sungai. Percampuran beragam sumber air tersebut dapat mempengaruhi kualitas air Rawa Danau, sehingga penelitian kondisi fisika dan kimia air menjadi penting untuk dilakukan. Pengukuran dilakukan pada kondisi puncak musim kemarau untuk menganalisis skenario terburuk dari curah hujan minimal dan kualitas air belum banyak dipengaruhi air hujan. Pada puncak musim kemarau, air di daerah penelitian cenderung bersifat asam dengan pH air berkisar 5,7-7,65. Hasil pengukuran dan analisis kimia air menggunakan AAS dan turbidimeter secara keseluruhan air masih memenuhi syarat untuk digunakan sesuai dengan peruntukannya. Analisis hidrogeokimia menggunakan diagram Piper menunjukkan bahwa tipe air Ca+Mg-HCO3.


Rawa Danau Serang, which is a wetland in the mountain area, is the primary source of water for Cilegon and surrounding areas. Besides the precipitation, the main source of water in Rawa Danau is the mountain springs. The other water sources include springs, hot springs, dug wells, boreholes, and rivers. The mixture of those various sources of water might affect the quality of water.  Therefore, a study on the chemical and physical properties of the water is essential. We measured the water condition in the dry season to analyze the worst-case scenario of minimal rain. At the peak of dry season, water in the study area was acidic with pH ranging from 5.7 to 7.65. The results of chemical analysis of water using AAS and turbidimeter have indicated that, as a whole, the water from Rawa Danau was still meet the requirements for domestic use. Hydro-geochemical analysis using the Piper diagram has indicated that the type water is Ca + Mg- HCO3.

 


Keywords


Rawa Danau, kualitas air, hidrogeokimia, kemarau, diagram piper

References


Alam, B. Y. C. S. S. S., Itoi, R., Taguchi, S., dan Yamashiro, R., 2014. Spatial Variation in Groundwater Types in the Mt.

Karang (West Java, Indonesia) Volcanic Aquifer System Based on Hydro-Chemical and Stable Isotope ([delta] D and [delta]^ sup 18^ O) Analysis. Modern Applied Science, 8(6), 87–102.

DOI: 10.5539/mas.v8n6p87.

Anomin, 2014. Cagar Alam Rawa Danau, SAVE THE BEST FOR THE LAST, Siaran Pers Pusat Humas, Sekretariat Jenderal Kementerian Kehutanan, Jakarta.

APHA, 2005. Standard Methods: for the examination water & wastewater, 21st edition, American Public Health Association., Washington DC 20001-3710.

Appelo, C. A. J., dan Postma, D., 2005. Geochemistry, Groundwater, and Pollution. 2nd edition, A.A. Balkema Publishers, Leiden, The Netherlands.

Arumugam, K., dan Elangovan, K., 2009. Hydrochemical characteristics and groundwater quality assessment in Tirupur Region, Coimbatore District, Tamil Nadu, India, Environ Geol. 58, 1509–1520. DOI: 10.1007/s00254-008-1652-y.

Badan Pusat Statistik (BPS) Banten, 2015. Provinsi Banten Dalam Angka, BPS Provinsi Banten.

Delinom, R. M., 2009. Structural geology controls on groundwater flow: Lembang Fault case study, West Java, Indonesia. Hydrogeology Journal, 17(4), 1011–1023.

Dubois, N., Oppo, D. W., Galy, V. V., Mohtadi, M., Van Der Kaars, S., Tierney, J. E., Rosenthal, Y., Eglinton, T. I., Lückge, A dan Linsley, B. K., 2014. Indonesian vegetation response to changes in rainfall seasonality over the past 25,000 years.

Nature Geoscience, 7(7), 513. DOI: 10.1038/ngeo2182.

Freeze, R. ALLAN, dan John A. Cherry., 1979. Groundwater" Englewood Cliffs, NJ: Prentice-Hall Inc, 604pp.

Fu, C. C., Zhang, W. J., Zhang, S. Y., Su, X. S., Lin, X. Y., 2014. Identifying key hydrochemical processes in a confined aquifer of an arid basin using multivariate statistical analysis and inverse modeling. Environmental Earth Science 72, 299-310.

Garg, V. K., Suthar, S., Singh, S., Sheoran, A., Meenakshi, G., Jai, S., 2009. Drinking water quality in villages of southwestern Haryana, India: assessing human health risks associated with hydrochemistry. Environmental Geology 58, 1329–1340.

Krakatau Tirta Industri, 2018., Sumber air, dalam https://www.krakatautirta.co.id/, Diunduh pada tanggal 11 Februari 2018.

Mattas C., Soulios G., Panagopoulos A., Voudouris K., dan Panoras A., 2007. Hydrochemical characteristics of the Gallikos River water, Prefecture of Kilkis, Greece, Global NEST Journal, 9(3), 251-258. DOI: 10.30955/gnj.000448.

Özler, H. M., 2000. Hydrogeology and geochemistry in the Curuksu (Denizli) hydrothermal field, western Turkey, Environmental Geology 39(10), 1169-1180. DOI:10.1007/s002540000139.

Piper, A. M., 1944. A graphical procedure in the geochemical interpretation of water analysis. Am Geophys Union Trans 25, 914–928.

Priyanto, B., dan Titiresmi, 2006. Beberapa aspek pengelolaan Cagar Alam Rawa Danau sebagai sumber air baku, Jur. Tek.Ling, BPPT, 7(3), 277-283.

Rusmana, E., Suwitodirdjo, K., dan Suharsono, 1991. Peta Geologi Lembar Serang Jawa Skala 1:100.000, Pusat Survey Geologi, Bandung.

Santosa, S., 1991. Peta Geologi Lembar Anyer Jawa Barat, Skala 1:100.000, Pusat Survey Geologi, Bandung.

Sudibyo, Y., 1995. Peta Hidrogeologi Indonesia Lembar Serang Skala 1:100.000, Direktorat Geologi Tata Lingkungan, Bandung.

Suryaman, M., 1999. Peta Hidrogeologi Indonesia Lembar Anyer-Cikarang, Skala 1:100.000, Direktorat Geologi Tata Lingkungan, Bandung.

Talabi, A. O, Afolagboye, O. L., Tijani, M. N., Aladejana, J. A. dan Ogundana, A. K., 2014. Hydrogeochemistry of Some Selected Springs’ Waters in Ekiti Basement Complex Area, Southwestern Nigeria, The International Journal of Engineering and Science (IJES), 3(2), 19-30.




DOI: http://dx.doi.org/10.14203/risetgeotam2019.v29.1021

Refbacks

  • There are currently no refbacks.


Copyright (c) 2019 Priyo Hartanto, Robert M Delinom, Hendarmawan Hendarmawan

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Copyright of Riset Geologi dan Pertambangan (e-ISSN 2354-6638 p-ISSN 0125-9849). Powered by OJS

 

Indexed by:

        

 

Plagiarism checker: