scholarly journals UJI pH DAN KARAKTER FISIK KUALITAS AIR DI PEMUKIMAN PABRIK KELAPA SAWIT (PKS) NAGA SAKTI TAPUNG HILIR

2015 ◽  
Vol 5 (2) ◽  
pp. 131-139
Author(s):  
Endang Susi Lestari ◽  
Shabri Putra Wirman ◽  
Noni Febriani ◽  
Aji Suroso
Keyword(s):  
Water Quality ◽  
Physical Parameters ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Quality Testing ◽  
Shallow Wells ◽  
Water Ph ◽  
Palm Oil Mill ◽  
The Republic ◽  
Artesian Wells

Water is the source of life for all living beings on this earth. Some sources of water for daily needs comes from shallow wells, artesian wells, springs, surface water and rain water collection. The Naga Sakti cottage settlements is one of the settlements adjacent to the Palm Oil Mill (POM) in the district of Lower Tapung Riau Kampar district, and the location of settlements in the area of oil palm plantations. Water produced from wells on the settlement sometimes colored and taste. therefore necessary to test the water pH and physical to determine whether the water in the wells meet the Ministry of Health of the Republic of Indonesia Number: 416/MENKES/PER/IX/1990 about water quality requirements with a pH test and physical parameters that include viscosity, Total Dissolved solids (TDS), Density, conductivity, Oxidation Reduction Potential (ORP), resistivity, salinity, and taste test. Water quality testing was conducted at a radius of 4 km to 8 km from the MCC. From the results of the pH test has been done, there are three that are close to the standard radius PERMENKES ie a radius of 4, 5 and 6 miles. As for the 8 km radius pH values far below the standard Permenkes at pH test. Then to test all the physical radius PERMENKES already meet the standards , in the form of test viscosity, density, ORP, TDS, salinity, conductivity, resistivit , and flavor .

scholarly journals Effect of water quality on the spatial distribution of charophytes in the Peshawar Valley, Khyber Pakhtunkhwa, Pakistan

2021 ◽  
Vol 50 (4) ◽  
pp. 359-372
Author(s):  
Izaz Khuram ◽  
Nadeem Ahmad ◽  
Sophia Barinova
Keyword(s):  
Water Quality ◽  
Spatial Distribution ◽  
Abundant Species ◽  
Nitellopsis Obtusa ◽  
Temperature Oxidation ◽  
Chara Vulgaris ◽  
Effect Of Water ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Water Ph

Abstract The presented research was conducted in 2018–2019 in the Peshawar Valley, Pakistan, to study for the first time the effect of water quality on the spatial distribution of charophytes. A total of six taxa of charophytes were found at 41 sites in the Peshawar Valley along the banks of seven rivers, 16 streams and two wetlands: Chara braunii C.C.Gmelin, C. connivens Salzmann ex A. Braun, C. contraria A. Braun ex Kützing, C. globularis Thuiller, C. vulgaris Linnaeus, and Nitellopsis obtusa (Desvaux) J. Groves. Chara vulgaris was the most abundant species, followed by C. globularis, and C. contraria. Water pH, electrical conductivity (EC), total dissolved solids (TDS), salinity and dissolved oxygen (DO) were within the permissible limits for Pakistan, while water temperature, oxidation reduction potential (ORP) and resistivity showed deviations. Canonical Correspondence Analysis (CCA) revealed that DO affected Chara vulgaris, pH and resistivity affected C. braunii, C. connivens and C. globularis, temperature and ORP affected C. contraria and Nitellopsis obtusa. Furthermore, CCA showed that TDS, EC, and salinity had no effect on the spatial distribution of Chara contraria, C. vulgaris and Nitellopsis obtusa. Chara contraria and Nitellopsis obtusa should be protected under VU (Vulnerable) status (IUCN) along with their habitats.

Surface Water Quality Assessment from a Mining Area. Case study, Groapa Burlacu lake, Targu Ocna, Romania

2019 ◽  
Vol 70 (10) ◽  
pp. 3678-3680
Author(s):  
Alina Cochiorca ◽  
Narcis Barsan ◽  
Florin Marian Nedeff ◽  
Ion Sandu ◽  
Emilian Florin Mosnegutu ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Water Quality Assessment ◽  
Mining Area ◽  
Physical Parameters ◽  
Mining Activities ◽  
Quality Of Water ◽  
Nacl Concentration ◽  
Water Ph

This paper presents a study on assessment of water quality. According to a study, mining activities have a significant impact on water quality (lakes, surface water and groundwater), which has become a major problem globally. Due to mining and exploitation processes, lakes can be formed around these mines. Also, these lakes have been formed around the world and are steadily increasing. The purpose of this study is to watch the quality of water from the area around mining activities. This study refers to the, Groapa Burlacu lake around the mining exploitation Targu Ocna, Romania. This lake was formed on the northern bottle of the massive salt, strongly affected by the underground activities. Sampling for the determination the concentrations of Cl- and NaCl from the studied area was made at different depths (0 m, -5 m, -10 m, -15 m, -20 m, -25 m, -30 m, -35 m -40 m). Besides these concentrations, physical parameters of the water (pH, turbidity, electrical conductivity, dissolved oxygen and temperature) were also measured. To determine the physical parameters in the monitored area, sampling was done from four different points of the area and then put together for analysis. These parameters were measured on site using portable equipment. The data on the analyzed concentrations indicate that at depths of less than 5.0 m, the NaCl concentration values are more than 250 g/L.

scholarly journals Smart Aquarium Management System

2020 ◽  
Author(s):  
Balasubramani S ◽  
Aakash Ram S ◽  
Akshay Bharadwaj S ◽  
Bennet Niffin N
Keyword(s):  
Water Quality ◽  
Management System ◽  
Temperature Monitoring ◽  
Physical Parameters ◽  
Water Renewal ◽  
Water Condition ◽  
Aeration System ◽  
The Status ◽  
Water Ph ◽  
Ph Level

In modern days, many people have fish as their pets at home. The fishes have been fed by the aquarist in the aquarium tanks which demands a proper setup for maintenance. The problems faced are change in water quality, feeding the fish, maintaining the temperature, controlling the lights and difficult to check the conditions of an aquarium manually. Therefore, it’s necessary to monitor the physical parameters closely and enhance the water condition. So, this project proposes a system which is equipped with sensors to be operated in real time. It performs temperature monitoring, water pH level detection, aeration system and water renewal operations. An IoT based system is implemented to monitor and deliver the status of the aquarium to user’s mobile application. Thus, an intelligent aquarium management has been implemented so that the fish is neither over nor under fed and thereby reducing the manual effort required in maintenance of aquarium.

scholarly journals SOFTWARE FOR CALCULATING A WATER QUALITY INDICATOR SPECIFIC TO THE AMAZON REGION

2021 ◽  
Vol 9 (3) ◽  
pp. 248-261
Author(s):  
A. M. F. de Souza ◽  
S. F. P. Pereira ◽  
L. P. Santos ◽  
C. S. e Silva ◽  
R. M. Rocha ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Indicator ◽  
Quality Parameters ◽  
Web Interface ◽  
Natural Ecosystems ◽  
Water Quality Indicator ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential

The quality of the water in the Amazon's reservoirs is of fundamental importance for natural ecosystems, biota, and for the region's population. Maintaining the water quality involves long-term monitoring programs established by the requirements of Brazilian legislation. A web interface may facilitate the use of monitoring results routinely, which allows periodic insertion of previously selected water quality parameters results, to finally provide a simple and direct way to evaluate the water quality. The general objective of this study was to develop a software based on a water quality indicator (WQI) system considering chemical, physical-chemical, and biological parameters evaluated in four seasonal periods in Samuel dam. Multivariate analysis was used to select 10 significant variables (oxidation-reduction potential, dissolved oxygen, total dissolved solids, chlorophyll a, phosphate, Ba, Ca, Fe, Na, and Sn). The web software added innovation to the project, enabling to storage of data from analysis of field-collected samples in an organized and safe way in a database, in addition to speeding up the calculation of the WQI, making it possible to classify the water quality more quickly and accurately.

scholarly journals Water Quality and Microbial Community Changes in an Urban River after Micro-Nano Bubble Technology in Situ Treatment

Water ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 66 ◽  
Author(s):  
Yifei Wu ◽  
Hui Lin ◽  
Weizhao Yin ◽  
Sicheng Shao ◽  
Sihao Lv ◽  
...  
Keyword(s):  
Water Quality ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Dominant Bacteria

Currently, black-odor river has received great attention in China. In this study, the micro-nano bubble technology (MBT) was used to mitigate the water pollution rapidly and continuously by increasing the concentration of dissolved oxygen (DO) in water. During treatment, the concentration of DO increased from 0.60 mg/L to over 5.00 mg/L, and the oxidation reduction potential (ORP) also changed from a negative value to over 100.00 mV after only five days aeration. High throughput pyrosequencing technology was employed to identify the microbial community structure. At genus level, the dominant bacteria were anaerobic and nutrient-loving microbes (e.g., Arcobacter sp., Azonexus sp., and Citrobacter sp.) before, and the relative abundances of aerobic and functional microbes (e.g., Perlucidibaca sp., Pseudarcicella sp., Rhodoluna sp., and Sediminibacterium sp.) were increased after treatment. Meanwhile, the water quality was significantly improved with about 50% removal ratios of chemical oxygen demand (CODCr) and ammonia nitrogen (NH4+-N). Canonical correspondence analysis (CCA) results showed that microbial community structure shaped by COD, DO, NH4+-N, and TP, CCA1 and CCA2 explained 41.94% and 24.56% of total variances, respectively. Overall, the MBT could improve the water quality of urban black-odor river by raising the DO and activate the aerobic microbes.

scholarly journals On the role of operational dynamics in biogeochemical efficiency of a soil aquifer treatment system

2020 ◽  
Vol 24 (1) ◽  
pp. 417-426 ◽  
Author(s):  
Shany Ben Moshe ◽  
Noam Weisbrod ◽  
Felix Barquero ◽  
Jana Sallwey ◽  
Ofri Orgad ◽  
...  
Keyword(s):  
Water Quality ◽  
Large Scale ◽  
Field Measurements ◽  
Treated Wastewater ◽  
Soil Aquifer Treatment ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Flooding And Drying ◽  
Promising Solution ◽  
Sustainable Irrigation

Abstract. Sustainable irrigation with treated wastewater (TWW) is a promising solution for water scarcity in arid and semi-arid regions. Soil aquifer treatment (SAT) provides a solution for both the need for tertiary treatment and seasonal storage of wastewater. Stresses over land use and the need to control the obtained water quality makes the optimization of SAT of great importance. This study looks into the influence of SAT systems' operational dynamics (i.e., flooding and drying periods) as well as some aspects of the inflow biochemical composition on their biogeochemical state and the ultimate outflow quality. A series of four long-column experiments was conducted, aiming to examine the effect of different flooding/drying period ratios on dissolved oxygen (DO) concentrations, oxidation–reduction potential (ORP) and outflow composition. Flooding periods were kept constant at 60 min for all experiments while drying periods (DPs) were 2.5 and 4 times the duration of the flooding periods. Our results show that the longer DPs had a significant advantage over the shorter periods in terms of DO concentrations and ORP in the upper parts of the column as well as in the deeper parts, which indicates that larger volumes of the profile were able to maintain aerobic conditions. DO concentrations in the deeper parts of the column stabilized at ∼3–4 mg L−1 for the longer DPs compared to ∼1–2 mg L−1 for the shorter DPs. This advantage was also evident in outflow composition that showed significantly lower concentrations of NH4+-N, dissolved organic carbon (DOC) and total Kjeldahl nitrogen (TKN) for the longer DPs (∼0.03, ∼1.65 and ∼0.62 mg L−1 respectively) compared to the shorter DPs (∼0.5, ∼4.4 and ∼3.8 mg L−1, respectively). Comparing experimental ORP values in response to different DPs to field measurements obtained in one of the SAT ponds of the SHAFDAN, Israel, we found that despite the large-scale differences between the experimental 1-D system and the field 3-D conditions, ORP trends in response to changes in DP, qualitatively match. We conclude that longer DP not only ensure oxidizing conditions close to the surface, but also enlarge the active (oxidizing) region of the SAT. While those results still need to be verified at full scale, they suggest that SAT can be treated as a pseudo-reactor that to a great extent could be manipulated hydraulically to achieve the desired water quality while increasing the recharge volumes.

ANALISIS KUALITAS AIR MINUM DALAM KEMASAN (AMDK) DI YOGYAKARTA DITINJAU DARI PARAMETER FISIKA DAN KIMIA AIR

2019 ◽  
Vol 6 (1) ◽  
pp. 46-56
Author(s):  
Titin Aryani
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Sampling Technique ◽  
Bottled Water ◽  
Physical Parameters ◽  
Water Quality Standards ◽  
Chemical Parameters ◽  
Water Ph ◽  
Quality Water

Backgroud: Nowadays, bottled water has become the most substitute water for cooking drinking water. Although bottled water seemed attractive, it is crucial to assess its quality. Objective: This quantitative study aimed to determine the quality of the 5 brands of bottled water circulating in Yogyakarta, in terms of physical parameters (temperature, smell, taste, color, turbidity, and TDS electroconductivity) and chemical parameters of water (pH, the presence of Cl-ions, and the presence of metals such as Cr, Fe, Zn, Cd). Methods: The sampling technique used was purposive sampling. The instrument used to determine the quality of bottled water is the standard of drinking water quality standards. Result: The results showed that five samples of bottled water circulating in Yogyakarta, are all qualified bottled water both in terms of physical parameters (temperature, smell, taste, color, turbidity, electroconductivity, and TDS) and chemical parameters of water (pH , the presence of Cl-ions, and the presence of metals such as Cr, Fe, Zn, Cd). Conclusion: Five samples of bottled water circulating in Yogyakarta were suitable for consumption. Keywords: Bottled water, water analysis, water quality, water chemistry parameters  

Monitoring Mortality of Pythium Zoospores in Chlorinated Water Using Oxidation Reduction Potential

2008 ◽  
Vol 9 (1) ◽  
pp. 9 ◽  
Author(s):  
Jillian M. Lang ◽  
Brittany Rebits ◽  
Steven E. Newman ◽  
Ned Tisserat
Keyword(s):  
Reduction Potential ◽  
Production Systems ◽  
Water Source ◽  
Chlorine Concentration ◽  
Initial Water ◽  
Greenhouse Production ◽  
Real Time Measurement ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Water Ph

Pythium species are frequently recovered from recycled irrigation water in greenhouse production systems and may cause damping off and root rot if the water is not disinfested properly. Chlorination is often employed as a disinfesting agent, but can be difficult to monitor accurately because its activity is pH-dependent. Oxidation reduction potential (ORP) is a reliable, real-time measurement of the oxidizing potential of a chlorine solution. We exposed zoospores of Pythium aphanidermatum and P. dissotocum municipal water where the ORP was increased by adding 0.125, 0.5, and 2 mg/liter chlorine (pH 7.6 to 8.1) or to the same water source where the pH was lowered to 6.0 prior to the addition of chlorine, resulting in a final pH of 6 to 7.3. Some zoospores of P. aphanidermatum and P. dissotocum survived treatment to the highest chlorine concentration for 4 min in water where pH was not lowered. When the water pH was lowered to 6.0 prior to chlorine addition, 100% of the P. aphanidermatum zoospores were killed after 0.5 min exposure to 0.5 mg/liter chlorine, where ORP ranged from 748 to 790 mV and pH 6.3. Lowering the initial water pH improved disinfestation of P. dissotocum zoospores at the highest chlorine concentration tested and a mean ORP of 790 mV. Accepted for publication 7 July 2008. Published 22 September 2008.

Clostridium botulinum Spores and Toxin in Mascarpone Cheese and Other Milk Products

1999 ◽  
Vol 62 (8) ◽  
pp. 867-871 ◽  
Author(s):  
GIOVANNA FRANCIOSA ◽  
MANOOCHEHER POURSHABAN ◽  
MONICA GIANFRANCESCHI ◽  
ANTONIETTA GATTUSO ◽  
LUCIA FENICIA ◽  
...  
Keyword(s):  
Dairy Products ◽  
Clostridium Botulinum ◽  
Reduction Potential ◽  
Toxin Production ◽  
Physical Parameters ◽  
Milk Products ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Foodborne Botulism ◽  
Toxin Formation

A total of 1,017 mascarpone cheese samples, collected at retail, were analyzed for Clostridium botulinum spores and toxin, aerobic mesophilic spore counts, as well as pH, aw (water activity), and Eh (oxidation–reduction potential). In addition 260 samples from other dairy products were also analyzed for spores and botulinum toxin. Experiments were carried out on naturally and artificially contaminated mascarpone to investigate the influence of different temperature conditions on toxin production by C. botulinum. Three hundred and thirty-one samples (32.5%) of mascarpone were positive for botulinal spores, and 7 (0.8%) of the 878 samples produced at the plant involved in an outbreak of foodborne botulism also contained toxin type A. The chemical–physical parameters (pH, aw, Eh) of all samples were compatible with C. botulinum growth and toxinogenesis. Of the other milk products, 2.7% were positive for C. botulinum spores. Growth and toxin formation occurred in naturally and experimentally contaminated mascarpone samples after 3 and 4 days of incubation at 28°C, respectively.

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