Uji LC50 Limbah Tahu Terhadap Ikan Nila (Orechromis Niloticus) Umur 2 Bulan di Banjarbaru
Journal Title: JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan - Year 2014, Vol 11, Issue 1
Abstract
Tofu industrial wastewater with a low pH, 0 mg/l DO and a temperature of 32°C when discharged without treatment into receiving water bodies will lead to the death of aquatic biota so acute toxicity tests need to be done. This study aims to determine the LC50 of the waste out in tilapia (Oreochromis niloticus). This study used an experimental method, posttest design with a control group. Samples were taken randomly in waste outlet in Banjarbaru, then toxicity tests performed with various of toxicant concentrations and exposure time at tilapia of 2 months age. Based on the initial results of toxicity tests, the lowest concentration that causes 100% dead of tilapia is 20%, so that the concentration of industrial wastewater know that will be used in the acute toxicity tests are: 4, 8, 12, 16 and 20%. Parameters wich were controlled are pH, temperature and DO. Probit analysis using SPPS was used to determined LC50. The results showed that LC50 for exposure time: 24, 48 and 72 hours are 3.80 up to 11.35%, 3.67 s.d 14.30% and 3.38 up to 12.10% particularly. Correlation analysis showed the characteristics of pH and DO in the tofu industrial wastewater affects the LC50. Decrease of DO and pH, LC50 would decrease. The study is expected as input to information and pollution control and waste out policy decisions in order to make local regulations maintained environmental sustainability. For further research can complement parameters Ammonia levels and turbidity in the water that affect the survival of fish, in addition to the pH, DO and temperature of the water.
Authors and Affiliations
Hardiono Hardiono, Rahmawati Rahmawati
Keywords
Related Articles
- EP ID EP298033
- DOI -
- Views 135
- Downloads 0
Hubungan Pengetahuan, Sikap dan Kenyamanan Pekerja Dengan Pemakaian Alat Pelindung Diri (APD) di Bengkel Las Listrik Kecamatan Amuntai Tengah Kabupaten Hulu Sungai Utara Tahun 2016
Abstract: Relations Of Knowledge, Attitude And Comfort Of Personal Protective Equipment (PPE) In Las Electrical Workshop Subdistrict Central Amuntai Regency Hulu Sungai Utara 2016. Means work safety and health is one of...
Hubungan Kecerdasan Emosional dan Motivasi Terhadap Hasil Belajar Mata Kuliah Bahasa Inggris di Jurusan Kesehatan Lingkungan Politeknik Kesehatan Kemenkes Banjarmasin
The background of this research are 1) As a supporting subject of competencies English needs to get serious attention given the current health workers must have good communication skills in public. 2) English is still...
Proses Netralisasi pH pada Air Gambut di Desa Sawahan Kecamatan Cerbon Kabupaten Barito Kuala
Abstract: The Neutralization Process of pH on Peat Water in Desa Sawahan Kecamatan Cerbon Kabupaten Barito Kuala. Desa Sawahan, Kecamatan Cerbon, Kabupaten Barito Kuala, located in the area of peatlands with a pH of wate...
Dosis Optimum Larutan Kapur untuk Netralisasi pH Air Limbah Penambangan Batubara
Coal mines release chemicals such as pyrite (Fe2S), produce acid waste water (H2SO4). This research aims to know the optimum dose of hydrated lime to neutralize the pH of coal mining wastewater. This research was experim...
Analisis Tingkat Pengetahuan Ibu Rumah Tangga Tentang Jenis Dan Bahaya Plastik Kemasan Makanan Di Wilayah Kerja Puskesmas Sungai Besar Kota Banjarbaru Tahun 2012
Banjarbaru ranks second in South Kalimantan in terms of degenerative diseases (RISKESDA, 2007). Not a few in this town of outstanding products especially plastic packaging used for food, how did the mother know the type...