scholarly journals PEMILIHAN TEKNOLOGI DAUR ULANG AIR LIMBAH DOMESTIK DI KANTOR BPPT

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Satmoko Yudo ◽  
Taty Hernaningsih
Keyword(s):  
Ground Water ◽  
Municipal Wastewater ◽  
Sea Water ◽  
Wastewater Reuse ◽  
Domestic Wastewater ◽  
Household Waste ◽  
Raw Water ◽  
Ground Water Quality ◽  
The World ◽  
Selection Of

The increasing variety of industrial activities in Indonesia resulted in ground water reserves in some areas experiencing drought. Exploitation of ground water by industry and the community in some big cities like Jakarta, resulting in the decrease of ground water and ground water quality reduced caused sea water instrusion. While the potential of wastewater produced by industrial and household waste high today. Based on the matters mentioned above and see the use of ground water that will be even greater in the future, then one of alternative that a lot of attention in many countries around the world are using wastewater reuse, particularly urban domestic wastewater (municipal wastewater) as a source of raw water for water supply. BPPT as a government office has made use of wastewater reuse technology, however, when the performance of the appliance is not working properly for it is necessary for re-evaluation and selection of wastewater reuse technology for better and sustainable. Keywords : Wastewater Reuse Technology, Domestic Wastewater, Water Consumption Survey

scholarly journals Dinamika hidrokimia air tanah pada Akuifer Pasiran Pulau Yeben Raja Ampat, Papua Barat

2021 ◽  
Vol 26 (2) ◽  
pp. 99-110
Author(s):  
Septian Vienastra
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Water Samples ◽  
Sea Water ◽  
Chemical Elements ◽  
Quality Standards ◽  
Small Island ◽  
Water Quality Standards ◽  
Ground Water Quality

The quality of coastal ground water on small islands has characteristics that are influenced by environmental and area factors. Yeben Island is a small island with an area of 0.57 km2 with priority coastal and marine tourism areas in the islands of Raja Ampat. This study aims to (1) analyze levels of ground water quality parameters and (2) analyze water samples against water quality standards. Groundwater samples taken as many as 4 samples from the study location. The location of water samples is in the morphology of the coastal plain. The analysis of each physical and chemical parameter of each groundwater sample is carried out by comparing the value of drinking water quality standards. The results are presented in a comparison table of quality standards and a graph of scaled values.Based on the results, the laboratory shows that it exceeds the quality standard of physical elements and chemical elements including fluoride, hardness, sulfate and organic substances. In general, the quality of water is poor. Poor ground water quality occurs due to the influence of sea water intrusion.

scholarly journals Experimental versus theoretical study of reverse osmosis pilot scaling: The case of Algerian brackish water desalination

2019 ◽  
Vol 42 (1) ◽  
pp. 49-58
Author(s):  
Abderrezak Bouchareb ◽  
Mehdi Metaiche ◽  
Hakim Lounici
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Reverse Osmosis ◽  
Brackish Water ◽  
System Analysis ◽  
Sea Water ◽  
Rejection Rate ◽  
Water Shortage ◽  
Water Desalination ◽  
Ground Water Quality

Abstract In recent years, the increasing threat to ground water quality due to human activities has become a matter of great concern. The ground water quality problems present today are caused by contamination and by over exploitation or by combination of both. Reverse osmosis (RO) desalination is one of the main technologies for producing fresh water from sea water and brackish ground water. Algeria is one of the countries which suffer from the water shortage since many years, so desalination technology becomes inevitable solution to this matter. In this study, a comparison is provided of results of reverse osmosis desalination for three different qualities of brackish water from the central-east region of Algeria (Bouira and Setif Prefectures), wherein they cannot use it as human drinking or in irrigation systems. The main objective of our study is to establish a comparison of the reverse osmosis membrane TW30-2540 performances in the term of (permeate flow, recovery rate, permeate total dissolved solids – TDS and salts rejection) under different operation pressures (each one takes a time of 720 second for pilot scaling). In order to make an overview comparison between the experimental and the simulated results we used ROSA (Reverse Osmosis System Analysis) software. At the end of this study we noted that, the simulated results are lower than the pilot scaling values and the most removed salts are the sodium chlorides with 99.05% of rejection rate.

scholarly journals Assessment of Pollution in Ground Water in Krishna Delta

2019 ◽  
Vol 8 (9) ◽  
pp. 236-240
Keyword(s):  
Groundwater Quality ◽  
Ground Water ◽  
Controlling Factors ◽  
Chemical Parameters ◽  
Ground Water Quality ◽  
Physico Chemical ◽  
The World ◽  
Environmental Balance ◽  
Increasing Demand ◽  
Water Values

The maintenance of groundwater quality is more necessary due to increasing demand and need for various purposes such as drinking and cultivation of crops etc. Overexploitation without proper planning decreases groundwater quality which affects adversely the health aspects of living beings and decrease in agricultural output.. Hence a detailed survey conducted for examine groundwater pollution in Doppalapudi (Latitude: 15.97410 N; Longitude: 80.50700 E) and Mannava (Latitude: 16.48100 N; Longitude: 80.57870 E) regions. The formations in the study area belong to sand and clay of Recent Era. Groundwater is analyzed for various physico-chemical parameters. Most of these parameters values are excess over prescribed values for drinking water. Values of quality methods such as Percent Sodium etc., suggest groundwater not suited to cultivation. Present attempt is made to examine the various controlling factors. This study is useful for similar studies throughout the world. Appropriate remedial measures are suggested for development of ground water quality to maintain environmental balance in study area

Mild desalination of various raw water streams

2015 ◽  
Vol 72 (3) ◽  
pp. 371-376 ◽  
Author(s):  
C. K. Groot ◽  
W. B. P. van den Broek ◽  
J. Loewenberg ◽  
N. Koeman-Stein ◽  
M. Heidekamp ◽  
...  
Keyword(s):  
Fresh Water ◽  
Laboratory Experiments ◽  
Raw Water ◽  
Literature Study ◽  
Sustainable Operation ◽  
The World ◽  
Commercial Applications ◽  
Study Laboratory ◽  
Selection Of

For chemical industries, fresh water availability is a pre-requisite for sustainable operation. However, in many delta areas around the world, fresh water is scarce. Therefore, the E4Water project (www.e4water.eu) comprises a case study at the Dow site in Terneuzen, The Netherlands, which is designed to develop commercial applications for mild desalination of brackish raw water streams from various origins to enable reuse in industry or agriculture. This study describes an effective two-stage work process, which was used to narrow down a broad spectrum of desalination technologies to a selection of the most promising techniques for a demonstration pilot at 2–4 m³/hour. Through literature study, laboratory experiments and multi-criteria analysis, nanofiltration and electrodialysis reversal were selected, both having the potential to attain the objectives of E4Water at full scale.

scholarly journals Microbiological changes along a modular wastewater reuse treatment process with a special focus on bacterial regrowth

2020 ◽  
Vol 10 (4) ◽  
pp. 380-393 ◽  
Author(s):  
Andreas Nocker ◽  
Lorenz Schulte-Illingheim ◽  
Hubert Müller ◽  
Anja Rohn ◽  
Barbara Zimmermann ◽  
...  
Keyword(s):  
Quartz Sand ◽  
Water Reuse ◽  
Municipal Wastewater ◽  
Treatment Process ◽  
Intact Cell ◽  
Wastewater Reuse ◽  
Pilot Scale ◽  
Special Focus ◽  
Raw Water ◽  
Intact Cells

Abstract Water reuse is becoming an increasing necessity due to depleted water resources or increased water demand. A treatment process on a pilot scale was designed to produce different water qualities for different applications in industry or agriculture. We report here microbiological changes along the modular process using treated municipal wastewater effluent as raw water. Treatment technologies included coagulation, ultrafiltration (UF), reverse osmosis (RO), quartz sand, activated granular activated carbon (GAC) filtration and disinfection. Elimination of traditional hygiene indicator bacteria was already achieved by ultrafiltration as the first barrier. Profound changes by each treatment step also applied to the microbiome. Total and intact cell concentrations as quantified by flow cytometry underwent a strong decline after UF and RO, whereas biological stabilization was achieved through quartz sand filtration and GAC passage. Interestingly assimilable organic carbon (AOC) was still present even after RO at levels that allowed substantial regrowth of bacteria. Overall, UF and RO led only to a 0.43 and 0.78 log decrease in intact cells concentrations in stagnated water after regrowth compared with 6.5 log intact cells/ml in the stagnated raw water. Temperature was shown to be an important parameter determining the microbiome of the regrown population. Regrowth could, however, be efficiently suppressed by monochloramine.

“To Corrupt a Man in the Midst of a Verse”: Ben Jonson and the Prose of the World

2017 ◽  
Vol 24 (1) ◽  
pp. 46-72
Author(s):  
Jacob Tootalian
Keyword(s):  
Mixed Mode ◽  
Ben Jonson ◽  
Digital Analysis ◽  
Interactive Engagement ◽  
Sentence Level ◽  
Linguistic Patterns ◽  
The World ◽  
Selection Of ◽  
Bartholomew Fair

Ben Jonson's early plays show a marked interest in prose as a counterpoint to the blank verse norm of the Renaissance stage. This essay presents a digital analysis of Jonson's early mixed-mode plays and his two later full-prose comedies. It examines this selection of the Jonsonian corpus using DocuScope, a piece of software that catalogs sentence-level features of texts according to a series of rhetorical categories, highlighting the distinctive linguistic patterns associated with Jonson's verse and prose. Verse tends to employ abstract, morally and emotionally charged language, while prose is more often characterized by expressions that are socially explicit, interrogative, and interactive. In the satirical economy of these plays, Jonson's characters usually adopt verse when they articulate censorious judgements, descending into prose when they wade into the intractable banter of the vicious world. Surprisingly, the prosaic signature that Jonson fashioned in his earlier drama persisted in the two later full-prose comedies. The essay presents readings of Every Man Out of his Humour and Bartholomew Fair, illustrating how the tension between verse and prose that motivated the satirical dynamics of the mixed-mode plays was released in the full-prose comedies. Jonson's final experiments with theatrical prose dramatize the exhaustion of the satirical impulse by submerging his characters almost entirely in the prosaic world of interactive engagement.

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