scholarly journals ANALISIS LC50 LOGAM Pb, Co dan Cr TERHADAP IKAN MAS (Cyprinus carpio. L) PADA LIMBAH CAIR INDUSTRI PERCETAKAN KOTA PADANG

Jurnal Dampak ◽  
2017 ◽  
Vol 14 (2) ◽  
pp. 98
Author(s):  
Taufiq Ihsan ◽  
Tivany Edwin ◽  
Ravany Yolanda Vitri
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Quality Standards ◽  
Quality Standard ◽  
Printing Industry ◽  
Animal Testing ◽  
Average Value ◽  
Lc50 Value ◽  
Wastewater Quality ◽  
Probit Method

The purpose of this study is to determine the LC50 value of wastewater from printing industry in Padang and to analyze the effect of Pb, Co, and Cr contained in the wastewater towards LC50 value. The results of the analysis of the characteristics of the printing industry wastewater, Pb concentration of 0.3 mg/l, Cr 0.8 mg/l and Co 0.9 mg/l. These concentrations exceed the quality standards in Indonesia according to PermenLH No. 05 of 2014 on Wastewater Quality Standard. Acute toxicity test was conducted in 96 hours observation using common carp (Cyprinus carpio.L) as animal testing with two replications. The value of LC50 was calculated using Probit Method by processing the data of testing animal mortality. The average value of LC50 was 128.05%. It can be proven from this study that Pb, Co and Cr affected the LC50 value indicated that a higher LC50 is related to a Pb, Co and Cr higher concentrations in wastewater and vice versa.Keywords: LC50, metals of printing industies, common carp, wastewater, PadangABSTRAKPenelitian ini bertujuan untuk menganalisis nilai LC50 dari limbah cair industri percetakan Kota Padang yang mengandung logam berat seperti timbal (Pb), kromium (Cr) dan kobalt (Co), terhadap ikan mas (Cyprinus carpio L.). Hasil analisis karakteristik limbah cair industri percetakan yakni konsentrasi Pb 0,3 mg/l, Cr 0,8 mg/l dan Co 0,9 mg/l. Konsentrasi ini melebihi baku mutu menurut Peraturan Pemerintah Negara Lingkungan Hidup Nomor 05 Tahun 2014 tentang Baku Mutu Air Limbah, yakni Pb 0,1 mg/l, Cr 0,5 mg/l dan Co 0,4 mg/l. Uji toksisitas akut dilakukan dalam waktu 96 jam pengamatan terhadap ikan mas dengan dua kali pengulangan. Berdasarkan hasil penelitian diperoleh nilai LC50 dengan menggunakan Metode Probit sebesar 128,05% dengan nilai LC50 untuk logam Pb yakni 0,38 mg/l, logam Cr 1,02 mg/l dan logam Co 1,15 mg/l. Analisis korelasi karakteristik limbah terhadap nilai LC bernilai r=0,98 yang berarti korelasi bernilai sangat kuat.Kata Kunci: LC50, logam limbah cair industri percetakan, ikan mas (Cyprinus carpio L.), Padang

PENGARUH COD DAN SURFAKTAN DALAM LIMBAH CAIR LAUNDRI TERHADAP NILAI LC50

Jurnal Dampak ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 87
Author(s):  
Esy Esmiralda ◽  
Zul Zulkarnaini
Keyword(s):  
Acute Toxicity ◽  
Cyprinus Carpio ◽  
Toxicity Test ◽  
Static Method ◽  
Acute Toxicity Test ◽  
Average Value ◽  
Lc50 Value ◽  
Wastewater Samples ◽  
Probit Method

ABSTRAKPenelitian ini bertujuan untuk menentukan nilai LC50 limbah cair laundri X Kota Padang dan menganalisis pengaruh COD dan surfaktan yang terkandung di dalam limbah cair laundri terhadap nilai LC50. Uji toksisitas akut dilakukan dengan metode statis dalam waktu 24 jam pengamatan terhadap 3 (tiga) sampel limbah cair laundry X kota Padang. Hewan uji yang digunakan adalah ikan mas (Cyprinus carpio. L). Nilai LC50 dihitung dengan Metode Probit menggunakan data kematian hewan uji. Nilai LC50 limbah cair laundri X Kota Padang berkisar antara 4,188% - 6,990% dengan nilai LC50 rata-rata sebesar 5,962%. Parameter COD dan surfaktan memberikan pengaruh terhadap nilai LC50 dimana semakin besar konsentrasinya maka nilai LC50 semakin kecil dan begitu juga sebaliknya.Kata kunci: COD, Kota Padang, Limbah Cair Laundri,Nilai LC50, SurfaktanABSTRACTThis research was aimed to determine the value of LC50 of laundry wastewater X in Padang city and also to analyze the effect of COD and surfactant which contained in the wastewater towards LC50 value. Acute toxicity test was done by using static method in 24 hours observation in three wastewater samples. Goldfish (Cyprinus carpio. L) was used as the testing animal. The value of LC50 was calculated with Probit method by using the data of testing animal mortality. The range of LC50 value was 4.188-6.990% with the average value of 5.962%. COD and surfactant proved affecting the LC50 value which indicated by the higher LC50 by the lower concentration of COD and surfactant and vice versa.Keywords: COD, Laundry wastewater, LC50 value, Padang city, Surfactant

scholarly journals RITME HARIAN KONSUMSI OKSIGEN INDUK IKAN MAS Cyprinus carpio DENGAN FOTOPERIODE KONTINYU 24 JAM

2018 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Vitas Atmadi Prakoso ◽  
Jun Hyung Ryu ◽  
Young Jin Chang
Keyword(s):  
Oxygen Consumption ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Average Value ◽  
Metabolism Rate ◽  
Common Carp Cyprinus Carpio ◽  
Significant Difference ◽  
Recirculation System ◽  
Carp Cyprinus Carpio ◽  
Photoperiod Manipulation

DIEL RHYTHM OF OXYGEN CONSUMPTION ON ADULT COMMON CARP Cyprinus carpio WITH CONTINUOUS 24-HOURS PHOTOPERIOD         Some external factors could affect the metabolism rate of fish. One of them is photoperiod which related to the length of day and night in a day. Based on that correlation, the experiment was conducted to determine the effects of photoperiod manipulation to the diel rhythm of oxygen consumption on adult common carp Cyprinus carpio. The experimental fish (total length: 29.2 ± 0.4 cm, total weight: 1295.8 ± 56.1 g) was observed in respirometer which connected in a closed recirculation system. The study was conducted with three replications with one individu in each replication. The water temperature and closed recirculation system was maintained at 20.2 ± 0.3oC. The photoperiod was set to 24 hours light : 0 hours of dark by using fluorescent lamp which lit continuously. The results showed that during 24 hours observation at 24 hours light: 0 hours dark condition, adult common carp has an oxygen consumption range of 24.5 - 29.1 mg O2/kg/h at 20oC. The average value of the lowest oxygen consumption occurred at 02.00 and 17.00 (24.5 ± 1.9 mg O2/kg/h). Meanwhile, the highest oxygen consumption value was recorded at 06.00 (29.1 ± 1.7 mg O2/kg/h). Based on data of oxygen consumption obtained from this study, no significant difference found between oxygen consumption of adult common carp during day and night with photoperiod manipulation. The activity and metabolism of adult common carp have changed with the change of photoperiod.Keywords: Common carp, Cyprinus carpio, oxygen consumption, photoperiod. ABSTRAK          Beberapa faktor eksternal dapat mempengaruhi laju metabolisme pada ikan. Salah satu diantaranya adalah fotoperiode yang berkaitan dengan lamanya siang dan malam dalam satu hari. Berdasarkan korelasi tersebut, maka dilakukan penelitian untuk mengetahui pengaruh manipulasi fotoperiode terhadap ritme harian konsumsi oksigen pada induk ikan mas Cyprinus carpio. Ikan uji (panjang total 29,2 ± 0,4 cm; bobot total 1295,8 ± 56,1 g) diamati di dalam respirometer yang terhubung dalam sistem resirkulasi tertutup. Penelitian dilakukan dengan tiga ulangan dengan masing-masing jumlah induk ikan sebanyak satu ekor. Suhu air dan sistem resirkulasi tertutup diatur pada suhu 20,2 ± 0,3oC. Fotoperiode diatur pada kondisi 24 jam terang : 0 jam gelap dengan menggunakan lampu fluorescent yang dinyalakan secara kontinyu. Hasil penelitian menunjukkan bahwa selama pengamatan 24 jam kondisi 24 jam terang : 0 jam gelap, induk ikan mas memiliki kisaran konsumsi oksigen sebesar 24,5 - 29,1 mg O2/kg/jam di 20oC. Nilai rata-rata konsumsi oksigen terendah terjadi pada jam 02.00 dan 17.00, yaitu 24,5 ± 1,9 mg O2/kg/jam. Sedangkan nilai konsumsi oksigen tertinggi tercatat pada jam 06.00, yaitu 29,1 ± 1,7 mg O2/kg/jam. Berdasarkan data konsumsi oksigen yang diperoleh dari penelitian ini, tidak ditemukan adanya perbedaan nyata antara konsumsi oksigen induk ikan mas saat siang dan malam hari dengan adanya manipulasi fotoperiode. Aktivitas dan metabolisme induk ikan mas mengalami perubahan dengan adanya perubahan fotoperiode.Kata kunci: Ikan mas, Cyprinus carpio, konsumsi oksigen, fotoperiode.

scholarly journals PENURUNAN KADAR BESI DAN KROMIUM LIMBAH CAIR LABORATORIUM TEKNIK LINGKUNGAN DENGAN PENGENCERAN, KOAGULASI DAN ADSOBSI

2020 ◽  
Vol 14 (1) ◽  
pp. 74
Author(s):  
Indah Nurhayati ◽  
Sela Vigiani ◽  
Dian Majid
Keyword(s):  
Waste Water ◽  
Treatment Process ◽  
Adsorption Process ◽  
Operating Time ◽  
Quality Standards ◽  
Quality Standard ◽  
Total Chromium ◽  
Wastewater Quality ◽  
Environment Regulation

The purposes of this study is to examine the effect of flowrate and operating time on decreasing Fe and Cr, assessing the quality of wastewater after being treated with dilution, neutralization, coagulation and adsorption especially for the parameters Cr, Fe and pH. The variables in this study are the flow of waste water that is 100 mL / min and 140 mL / min, operating time for 60 minutes. The adsorption process is carried out continuously with down flow. Adsorbents in the form of activated zeolite and activated carbon are arranged in stages in a PVC reactor. The results of this study are 100 ml/min discharge can reduce total Fe by 99.9% from 1,767 mg/L to 0,971 mg/L and total chromium 99.2% from 48.7 mg/L to 0,39 mg/L. 140 ml/minute discharge can reduce total Fe 99.9% from 1,767 mg/L to 0.99 mg/L and total chrome 99% from 48.7 mg/L to 0.45 mg/L. Waste water quality, especially for the parameters of Cr, Fe and pH, after the treatment process have met the quality standard in accordance with Minister of Environment Regulation No. 5 of 2014 concerning Wastewater Quality Standards.

scholarly journals HYBRID ANAEROBIC BAFFLED REACTOR FOR REMOVAL OF BOD AND PHOSPHATE CONCENTRATION IN DOMESTIC WASTEWATER

2021 ◽  
Vol 5 (1) ◽  
pp. 14
Author(s):  
Sugito Sugito ◽  
Rhenny Ratnawati ◽  
Herlina Afiafani
Keyword(s):  
Domestic Wastewater ◽  
Quality Standards ◽  
Quality Standard ◽  
Phosphate Concentration ◽  
Phosphate Removal ◽  
Anaerobic Baffled Reactor ◽  
A Value ◽  
Development Technology ◽  
Wastewater Quality ◽  
Required Quality

<span id="docs-internal-guid-e4ec4542-7fff-e572-3432-dc3c540a72ea"><span>Hybrid Anaerobic Baffled Reactor (HABR) is a development technology from the Anaerobic Baffled Reactor (ABR), which was already known as a technology that is successful in treating domestic waste. </span><span>Aims: </span><span>The objectives of these studies were to investigate the efficiency of reducing BOD and phosphate levels in HABR with zeolite (ZE) and activated carbon (AC) media. </span><span>Methodology and Results:</span><span> HABR reactor made of acrylic material with a size of 90 cm x 20 cm x 30 cm. The reactor designed has 7 compartments, with details the first 5 compartments are suspended growth microorganism reactors and the next 2 compartments are attached growth microorganism reactors. </span><span>Conclusion, significance, and impact of study:</span><span> The result of the research showed that the efficiency of reducing BOD concentration in the reactor with ZE and AC media were 59.30% and 65.12%, respectively. The final BOD concentration in the AC reactor is 30 mg/L, this value meets the domestic wastewater quality standard required by East Java Governor Regulation Number 72 of 2013 concerning Wastewater Quality Standards for Industry and/or Other Business Activities. The final BOD concentration in the ZE reactor exceeded the required quality standard with a value of 35 mg/L. The final phosphate levels of the two reactors meet the wastewater quality standards for business and/or laundry activities with a maximum phosphate concentration of 10 mg/L. The final phosphate levels in the ZE and AC reactors were 3.74 mg/L and 8.79 mg/L, respectively. The efficiency of phosphate removal in ZE and AC reactors were 70.58% and 30.87%, respectively.</span></span>

SIFAT MEKANIK PAPAN GYPSUM DARI SERBUK LIMBAH KAYU NON KOMERSIAL

2014 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Saibatul Hamdi
Keyword(s):  
Raw Materials ◽  
Wood Particle ◽  
Quality Standards ◽  
Gypsum Board ◽  
Average Value ◽  
Wood Particles ◽  
Sawn Timber ◽  
Materials Used ◽  
Artocarpus Elasticus ◽  
Ficus Glomerata

The purpose of this research is to know the mechanical strength of gypsum board by utilizing waste sawn wood. Raw materials used consist of flour, gypsum,wood particles, boraks and kambang (Goniothalamus sp), wood tarap (Artocarpus elasticus REINW) and lua (Ficus glomerata ROXB). Wood particle 40 mesh and 60 mesh, concentrations boraks of 1 and 2 and the percentage particles of gypsum sawn timber is 300, 400 and 500%. The results showed that the average value Modulus of Rufture (MoR) in lua wood ranges from 12.55 – 14,47 kgcm2, wood kambang 25.10-31,11 kgcm2 and wood tarap 19.20- 24,18 kgcm2. As for Modulus of Elasticity (MoE) on the lua 1129,80- 2092,70 kgcm2, wood kambang 2512,37-3971,32 kgcm2 and tarap 2050,63-2691,09 kgcm2. Gypsum board are mechanical properties do not meet quality standards created SNI 03-6434-2000.Keywords: sawdust, lua, kambang, tarap, gypsum, mechanical

Enrichment of common carp (Cyprinus carpio) diet with Malic acid: Effects on skin mucosal immunity, antioxidant defecne and growth performance

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Roghieh Safari ◽  
Seyed Hossein Hoseinifar ◽  
Maryam Dadar ◽  
Hien Van Doan
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Malic Acid ◽  
Control Group ◽  
Skin Mucus ◽  
Antioxidant Genes ◽  
Treatment Comparison ◽  
Genes Expression ◽  
Significant Difference ◽  
And Control

AbstractThe present study investigated possible effects of dietary malic acid on the expression of immunity, antioxidant and growth related genes expression as well as skin mucus immune parameters in common carp. Common carp (Cyprinus carpio) fingerlings were fed diets supplemented with different levels (0 [control], 0.5%, 1%, 2%) of malic acid (MA) for 60 days. The results revealed highest expression levels of immune-related genes (tnf-alpha, il1b, il8 and lyz) in skin of common carp fed 2% MA (P < 0.05). Regarding 1% MA treatment comparison with control group, significant difference was noticed just in case of lyz (P < 0.05). Evaluation of growth related genes expression revealed no significant difference between treatments (P > 0.05). The study of antioxidant related genes (gsta and gpx) in common carp skin fed with MA, showed significant difference between treated groups and control (P < 0.05). Carps fed with 2% MA had highest alkaline phosphatase activity in skin mucus compared other treated groups and control (P < 0.05). There were no significant difference between 0.5% and 1% and control (P > 0.05). The study of total protein and total immunoglobulin (Ig) in common carp skin musus revealed no alteration following MA treatment (P > 0.05). The present data demonstrated that feeding with MA altered immune and antioxidant genes expression in skin mucus of common carp.

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