scholarly journals Budi daya cacing sutra (Tubifex sp.) dengan sistim air mengalir di Balai Perikanan Budidaya Air Tawar Tatelu (BPBAT), Propinsi Sulawesi Utara

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Jefrikardus E. E. Ngatung ◽  
Henneke Pangkey ◽  
Jeffrie F. Mokolensang
Keyword(s):  
Water Quality ◽  
Water System ◽  
Field Work ◽  
Quality Parameters ◽  
Chicken Manure ◽  
Flowing Water ◽  
North Sulawesi ◽  
Work Training ◽  
Silk Worm ◽  
The Media

The field work training of silk worm culture was done in one month at Balai Perikanan Budidaya Air Tawar Tatelu (BPBAT), Province of North Sulawesi, from May to June, 2016.  The media used are poultry dung (chicken manure) and EM4 with a flowing water system and fed with additional tofu waste.  The initial spread of silk worm seeds was 75 g / m2, and the results obtained were silk worm biomass of 150 g / m2, with the measurement of water quality parameters for DO, temperature and pH are respectively 1.61 ppm, 24.4-27.7° C and 6.1-7.3.Keywords:  aquaculture, life feed, silk worm, Tubifex sp., water quality

scholarly journals Pemanfaatan kotoran ternak dengan dosis yang berbeda terhadap pertumbuhan dan biomassa cacing sutra (Tubifex sp.)

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Detiben Wenda ◽  
Henneke Pangkey ◽  
Jeffrie F. F. Mokolensang
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Chicken Manure ◽  
Pig Manure ◽  
Cattle Dung ◽  
Cow Dung ◽  
North Sulawesi ◽  
Freshwater Aquaculture ◽  
Nitrate And Nitrite

The purpose of this study was to analyze the use of cattle dung on the growth and biomass of silk worms. The experiment was conducted at Freshwater Aquaculture Center (BPBAT) Tatelu, Tatelu Village, Dimembe Subdistrict, North Minahasa Regency, North Sulawesi Province, about 35 km from Manado city. The media used was pig manure, chicken manure, cow dung, and fine mud added with EM4. The method used was complete randomized design (RAL) with 4 treatments including A. 500 g of pig manure, 500 g of chicken manure 500 g of cow dung, and 500 g of fine mud; B. 600 g of pig manure, 400 g of chicken manure 500 g of cow dung, 500 g of fine mud; C. 700 g of pig manure, 300 g of chicken manure, 500 g of cow dung, 500 g of fine mud; and K (control) was 2000 g of fine mudinand, each with 3 replications. Water quality parameters measured during the study were temperature, pH, DO, nitrate and nitrite. The results showed that there was a very significant effect on growth but not for the value of silk worm biomass. The highest growth was found in treatment A that was 38 g, while for the highest biomass also in treatment A namely 1.5 g / cm3. Water quality parameters during the study were 24.3-25.4° C, pH 7,1-7,3; DO 2.7-5,7 ppm; nitrate 1.1-1.4 ppm; nitrite 0.011-0.201 ppm.Keywords:  Cattle dung, growth, biomass, Tubifex sp., aquaculture

Hydrogeochemical Mechanism of the Petroleum Hydrocarbon Pollution in Karst Fissure Groundwater System

2013 ◽  
Vol 295-298 ◽  
pp. 159-163 ◽  
Author(s):  
Zhen Min Ma ◽  
Yun Yun Luo ◽  
Yun Zhi Fang ◽  
Yu Song Hou
Keyword(s):  
Water Quality ◽  
Petroleum Hydrocarbons ◽  
Petroleum Hydrocarbon ◽  
Water System ◽  
Quality Parameters ◽  
Groundwater System ◽  
Hydrocarbon Pollution ◽  
Groundwater Environment ◽  
Before And After ◽  
Fissure Water

The research of hydrogeochemical mechanism of petroleum hydrocarbon in karst fissure groundwater system is important to predict the trend of petroleum hydrocarbons and the change of groundwater environment. We take the karst fissure water system as the research object, where there is a refinery. The variation of SO42-, HCO3-, NO3-, NO2-, HS- can be used as a hydrogeochemical sign of petroleum hydrocarbon pollution by analyzing the change of water quality parameters before and after karst fissure water contaminated by petroleum hydrocarbon. It has been also analyzed systematically that hydrogeochemical mechanism including desulfurization, denigration and ion exchange happen during the pollution process in the karst fissure water system. It is pointed out that the human activities have a great impact on the groundwater and changes of environment.

scholarly journals Quality of Drinking Water from Springs in Palestine: West Bank as a Case Study

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Azza Daghara ◽  
Issam A. Al-Khatib ◽  
Maher Al-Jabari
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
West Bank ◽  
Field Work ◽  
Quality Parameters ◽  
Total Hardness ◽  
Residual Chlorine ◽  
The West ◽  
A Minor ◽  
Physical And Chemical

The shortage of fresh water creates acute challenges in the West Bank of Palestine. Springs provide a main water resource in the West Bank. Investigating springs’ water quality is essential step for promoting their public use. The aim of this research is to assess the microbiological and physiochemical quality parameters of drinking water from springs. The study methodology included sampling through field work and laboratory testing for water quality parameters using standard procedures. The study area covered all locations containing licensed springs by the Palestinian Water Authority in the West Bank of Palestine. The number of collected samples was 127 covering 300 springs. The chemical, physical, and biological parameters for each sample were measured. Then, the obtained characteristics were evaluated based on national and international quality standards (PSI and WHO). The investigated parameters included temperature, pH, EC, total hardness, concentrations of nitrate, sodium ions, total chlorine, residual chlorine, turbidity, and total and faecal coliforms. Most of investigated physical and chemical parameters were within the acceptable standard limits. However, the turbidity and chloride and nitrate concentrations exceeded standard limits. The findings indicate that only a minor fraction of the samples (2%) requires chlorination treatment, while most of the springs (97% of samples) are classified as possessing no risk.

scholarly journals Legionella Diversity and Spatiotemporal Variation in the Occurrence of Opportunistic Pathogens within a Large Building Water System

Pathogens ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 567 ◽  
Author(s):  
Helen Y. Buse ◽  
Brian J. Morris ◽  
Vicente Gomez-Alvarez ◽  
Jeffrey G. Szabo ◽  
John S. Hall
Keyword(s):  
Water Quality ◽  
Water System ◽  
Bulk Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Opportunistic Pathogens ◽  
Water Age ◽  
Large Building ◽  
Survival Mechanisms ◽  
Culture Positive

Understanding Legionella survival mechanisms within building water systems (BWSs) is challenging due to varying engineering, operational, and water quality characteristics unique to each system. This study aimed to evaluate Legionella, mycobacteria, and free-living amoebae occurrence within a BWS over 18–28 months at six locations differing in plumbing material and potable water age, quality, and usage. A total of 114 bulk water and 57 biofilm samples were analyzed. Legionella culturability fluctuated seasonally with most culture-positive samples being collected during the winter compared to the spring, summer, and fall months. Positive and negative correlations between Legionella and L. pneumophila occurrence and other physiochemical and microbial water quality parameters varied between location and sample types. Whole genome sequencing of 19 presumptive Legionella isolates, from four locations across three time points, identified nine isolates as L. pneumophila serogroup (sg) 1 sequence-type (ST) 1; three as L. pneumophila sg5 ST1950 and ST2037; six as L. feeleii; and one as Ochrobactrum. Results showed the presence of a diverse Legionella population with consistent and sporadic occurrence at four and two locations, respectively. Viewed collectively with similar studies, this information will enable a better understanding of the engineering, operational, and water quality parameters supporting Legionella growth within BWSs.

scholarly journals ANALISIS PENDAPATAN USAHA BUDIDAYA CACING SUTERA DENGAN MEDIA NAMPAN BERTINGKAT ; KASUS USAHA KELUARGA DI DESA KARANGTEJO KEDU TEMANGGUNG JAWA TENGAH DAN UJI COBA DI BELITANG OKU TIMUR

2018 ◽  
Vol 4 (02) ◽  
pp. 19-24
Author(s):  
Muridin
Keyword(s):  
Financial Analysis ◽  
Market Potential ◽  
Production Costs ◽  
Chicken Manure ◽  
Key Factors ◽  
Central Java ◽  
A Value ◽  
Potential Market ◽  
Silk Worm ◽  
The Media

This research aims to know the techniques of cultivation and silk worm life terms with the media tray multilevel. To calculate the income level of the silk worm cultivation efforts with media in the village-floor tray Karangtejo Kedu Temanggung Central Java as well as key factors for the development of silk worm in Belitang OKU East. Data processing methods used are of financial analysis (cost of production, production, reception, income and RC ratio) and non financial analysis (Bahaninput, Agroklimat, potential market). The research results obtained with silk worm cultivation media tray multilevel can be dikebangkan in the East viewed from the OKU Belitang market potential is great with silk worms requests in one month about 2815 glasses. The available input materials among others, silk worm seed dregs of tofu, chicken manure, fine bran. Temperature suitability trials with cultivation in Eastern silk worm Belitang OKU can adapt and expand the container trays. Production costs incurred in one fell prosesproduksi amounting to Rp 9,256,350, Rp gained acceptance 18,977,000 and revenue amounting to Rp 9,720,650 with a value of RC ratio of 2.05.

scholarly journals Recirculating system using biological aerated filters on tambaqui fingerling farming

2019 ◽  
Vol 54 ◽  
Author(s):  
Jô de Farias Lima ◽  
Daniel Montagner ◽  
Sting Silva Duarte ◽  
Eliane Tie Oba Yoshioka ◽  
Márcia Kelly Reis Dias ◽  
...  
Keyword(s):  
Water Quality ◽  
Hematological Parameters ◽  
Quality Parameters ◽  
Ichthyophthirius Multifiliis ◽  
Recirculating Aquaculture ◽  
Aquaculture System ◽  
Solids Concentration ◽  
Similar Materials ◽  
The Media ◽  
Biological Filters

Abstract: The objective of this work was to evaluate a recirculating aquaculture system using biological aerated filters in tanks for tambaqui (Colossoma macropomum) fingerlings farming, with two initial stocking densities (1.4 and 2.5 kg m-3). The biofilters had similar materials (media) and the same granulometric standards, but inverted orders of the media (classic and inverted). The following were monitored for 90 days: water quality; zootechnical, parasitological, and hematological parameters; and hematimetric indices. Water temperature, oxygen levels, pH, electrical conductivity, and dissolved solids concentration were compatible with tambaqui farming and did not differ between the different biofilters and densities. The ammonia and nitrite value was associated with the stocking densities and not with biofilter. The zootechnical and hematological parameters and the hematimetric indices evaluated were not influenced either by the type of biofilter or by the stocking densities. Ichthyophthirius multifiliis, Anacanthorus spathulatus, Notozothecium janauachensis, and Mymarothecium boegeri were the parasites found. The aerated, classical, and inverted biological filters have similar efficiency in maintaining water quality parameters for tambaqui fingerling farming.

scholarly journals Analisis kelayakan lahan budi daya rumput laut (Ulva sp.) pada lokasi rencana pengembangan North Sulawesi Marine Education Center di Likupang Timur

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Selvanus Edy ◽  
Edwin L. A. Ngangi ◽  
Joppy D. Mudeng
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Water Quality Parameter ◽  
Seaweed Cultivation ◽  
Field Station ◽  
North Sulawesi ◽  
Marine Education ◽  
Development Area

The purpose of this research was to know and evaluate the condition of aquatic environment and water quality parameters for cultivation of seaweed Ulva sp. This research was conducted on North Sulawesi Marine Education Center (NSMEC). NSMEC is planned to be built at Marine Field Station FPIK UNSRAT located in Likupang Timur Kabupaten Minahasa Utara. The waters of NSMEC development area are geographically located at 1040.437 'LU and 12504.499' BT. The determination of 4 stations was done by purposive sampling which was considered to represent the condition of waters. Coordinate stations were recorded with GPS help. The data were collected for 14 days every 6:00 pm, at 12:00 pm and 17:00 pm. The observation of environmental conditions was carried out for protection factor and substrate of water base, while water quality parameter measured in situ included depth, brightness, temperature, dissolved oxygen (DO) salinity, pH and current velocity. Phosphate, nitrate and total suspended solid (TSS) were measured. Tide measurements were measured every hour for 24 hours. Data analysis used conformity matrices that included scores and weights for the determination of conformity classes. Class suitability was used to describe the suitability of seaweed. The results showed that the waters of the NSMEC development zone were in class S1 meaning very suitable for seaweed cultivation location. The analysis results of each station found that 4 stations were very suitable. As conclusion, water environment and water quality parameters of the waters of North Sulawesi Marine Education Center development area located at Marine Field Station FPIK UNSRAT were categorized as very suitable for seaweed cultivation, Ulva sp.Keywords: Ulva sp., feasibility analysis, water quality, location suitability

scholarly journals Can Material and Energy Be Saved by Differentiating Water Quality Targets in the Water Purification Process?

2020 ◽  
Vol 12 (20) ◽  
pp. 8730
Author(s):  
Sébastien M. R. Dente ◽  
Toshiyuki Shimizu ◽  
Tao Wang ◽  
Seiji Hashimoto
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Treatment Plant ◽  
Water System ◽  
Water Systems ◽  
Quality Parameters ◽  
Water Supply Systems ◽  
Municipal Water Supply ◽  
Product Service ◽  
The Cost

The current organization of water supply systems demands drinking standards for all the households’ usage of water. Few dual water systems, i.e., systems in which the quality of the water supplied is differentiated by types of use, exist but are mainly circumscribed to developing countries. Besides, bath and showers are so far considered as a potable use of water despite only drinking and cooking activities requiring the high-quality standards of potable water. The present work demonstrates how the principles of dual water systems can be incorporated into the sustainable concept of product-service system (PSS) using a dual water system of a municipal water supply treatment plant in France as a case study. The PSS is based on the water quality, and the bathing activity of households is considered with a dedicated standard for the first time. Two systems are considered, S1 and S2, supplied with the same raw water quality and treated with drinking (S1) bathing standards (S2). The quality parameters considered are total organic carbon (TOC) and turbidity (T) and the potential savings related to costs, material, and energy consumptions are assessed using EVALEAU as a process modeling tool. The treatment lines consisted of powdered activated carbon (PAC) addition, coagulation, flocculation, settling, and rapid sand filtration. Results show that material consumption can be reduced by 41% mainly through the decrease in chemical consumption associated with the change of requirement for the TOC parameter. On the opposite, energy consumption was found dependent on the water of volume treated rather than its quality leading to only marginal savings. The cost was decreased by 37% as a result of the reduction of the chemicals consumed.

scholarly journals Kelimpahan dan Keanekaragaman Bakteri Pada pembenihan Ikan Lele (Clarias gariepinus) dengan Sistem Air Tertutup (Close Water System)

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Hanif Azhar ◽  
Mohammad Faizal Ulkhaq ◽  
. Prayogo
Keyword(s):  
Water Quality ◽  
Bacterial Species ◽  
Clarias Gariepinus ◽  
Anaerobic Bacteria ◽  
Water System ◽  
Fish Growth ◽  
Fish Stock ◽  
Closed Water ◽  
The Media ◽  
Abundance And Diversity

This research aimed to identify types of bacteria existed in nursery rearing pond of catfish (Clarias gariepinus) using closed water system. The observed data include bacterial abundance and diversity in the water and in the fish digestion system, fish growth and water quality. This research was performed in the media of 3 concrete pools with the size of 3 x 1 x 0.8 m3 containing fish stock spreading of 3000 tail / pond. The obtained results showed that the highest abundance of bacteria was found in the surface and the bottom of pond C with the abundance number of   3,0 x 104and 1,2 x 103for aerobic and anaerobic bacteria, respectively. Moreover, it was figured that the dominant bacterial species found in the water and the gastrointestinal tract were from the genus of Bacillus, Clostridium and Lactobacillus. Meanwhile, water quality in the pond was observed in the normal range with the temperatures of 28 - 30 oC, pH (6.0 - 7.0), DO (4.5 - 5.7 ppm), ammonia (0.06 - 0.03 ppm), nitrite (0 ppm) and nitrate (0 - 5 ppm). Keywords: Type of bacteria, catfish (Clarias gariepinus), Closed water system.

scholarly journals Analisis parameter fisika kimia air pada lokasi karamba jaring tancap di Danau Tondano Kabupaten Minahasa Provinsi Sulawesi Utara

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Abdul J. Sarif ◽  
Diane J. Kusen ◽  
Novie P.L. Pangemanan
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Quality Parameters ◽  
Chemical Parameter ◽  
North Sulawesi ◽  
Net Cages ◽  
Physical And Chemical ◽  
Culture Site

This research was to determine the current condition of the water physical chemical quality parameters at culture areas in Lake Tondano. The study  conducted at Lake Tondano Minahasa Regency, North Sulawesi Province.  Determination of the water physical and chemical qualitis was carried through field observation and laboratorium analysis at the Industrial Research and Standardization in Manado. Measurement and retrieval of physical and chemical parameter of water quality was done at culture site with high density, medium and small especially at Eris Village, Leleko Village and Toulour Village. Water temperature was 26oC - 29oC, brightness of 1.34-2.8 cm, depth of 4.23-11.8 m, acidity of 6.7-7.8 mg/L, dissolved oxygen, 2.75–6.31 mg/L, nitrate 0.00-1.58 mg/L, nitrite 0.00–0.027 mg /L, ammonia 0.00–0.292 mg/L and phosphate 0.02–0.721 mg/L.  The results showed that water quality of Lake Tondano still match the quality standard of water quality for fish cultivation except ammonia.Keywords: water quality, net cages, Lake Tondano

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