Comparative Analysis of Low Cost Nanomaterials for Removal of Arsenic and Microbial Contamination from Potable Water

2017 ◽  
Vol 11 (5) ◽  
pp. 356-362 ◽  
Author(s):  
Ankita Mathur ◽  
Ashish Kumar ◽  
Mini Namdeo Giri ◽  
Rama Mehta ◽  
Vijaya Agarwala
Keyword(s):  
Comparative Analysis ◽  
Microbial Contamination ◽  
Potable Water ◽  
Low Cost ◽  
Removal Of Arsenic

MASALAH DAN ALTERNATIF TEKNOLOGI PENGOLAHAN AIR UNTUK MASYARAKAT MISKIN KOTA

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Arie Herlambang
Keyword(s):  
Water Treatment ◽  
Ground Water ◽  
Potable Water ◽  
Diarrheal Disease ◽  
Low Cost ◽  
Clean Water ◽  
Treatment Technology ◽  
Alternative Technologies ◽  
The Poor ◽  
Daily Water

Clean water to poor communities who live in crowded municipal area is stillexpensive and a luxury. This condition is evidenced by the number of people whouse ground water for their daily water, because water taps still seems expensivefor them. Diarrheal disease is still relatively high for Indonesia, where nearly 16thousand people suffer from diarrhea due to poor sanitation. To help the poor inthe city, there are several alternative technologies that can be applied to publicaccess to clean water and adequate low-cost, including ground water treatmenttechnology with a filter system equipped with an ultraviolet sterilizer, or ozonegenerators, or using ultrafiltration, if possible can also use the reverse osmosismembrane that for fresh water. Arsinum is the best alternative should be chosenfor fulfilled potable water in slump area.Keywords : Sanitation, water treatment technology, portable water, low-cost, slump area

scholarly journals Comparative Analysis of Low-Cost GNSS OEM Board K706 AND BX316 (Case Study: Bulusidokare Village Sidoarjo Regency)

2021 ◽  
Vol 731 (1) ◽  
pp. 012024
Author(s):  
M N Cahyadi ◽  
E Y Handoko ◽  
R Mardiyanto ◽  
I M Anjasmara ◽  
Khomsin ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Low Cost

scholarly journals Comparative Analysis of QoS Management and Technical Requirements in 3GPP Standards for Cellular IoT Technologies

2018 ◽  
Vol 2 ◽  
pp. 41-47 ◽  
Author(s):  
Valery Tikhvinskiy ◽  
Grigory Bochechka ◽  
Andrey Gryazev ◽  
Altay Aitmagambetov
Keyword(s):  
Comparative Analysis ◽  
New Technologies ◽  
Narrow Band ◽  
Low Cost ◽  
Low Latency ◽  
Qos Management ◽  
Technical Requirements ◽  
Iot Devices ◽  
Positive Results

Optimization of 3GPP standards that apply to cellular technologies and their adaptation to LPWAN has not led to positive results only enabling to compete on the market with the growing number non-cellular greenfield LPWAN technologies – LoRa, Sigfox and others. The need to take into consideration, during the 3GPP standard optimization phase, the low-cost segment of narrow-band IoT devices relying on such new technologies as LTE-M, NB-IoT and EC-GSM, has also led to a loss of a number of technical characteristics and functions that offered low latency and guaranteed the quality of service. The aim of this article is therefore to review some of the most technical limitations and restrictions of the new 3GPP IoT technologies, as well as to indicate the direction for development of future standards applicable to cellular IoT technologies.

scholarly journals Removal of Arsenic Contamination from Gomti River Water by using Activated Charcoal Absorbent Integrated with Solar Distillation Unit

2020 ◽  
Vol 32 (3) ◽  
pp. 550-554 ◽  
Author(s):  
Suresh Kumar Patel ◽  
Dhananjay Singh ◽  
Rahul Dev
Keyword(s):  
River Water ◽  
Low Cost ◽  
Arsenic Concentration ◽  
Uttar Pradesh ◽  
Arsenic Contamination ◽  
Isotherm Models ◽  
Gomti River ◽  
Solar Distillation ◽  
Freundlich Adsorption Isotherm ◽  
Removal Of Arsenic

Arsenic is a ubiquitous and short-term poisoning element, which affects living things. In this study, the removal of arsenic from Gomti river water, Lucknow, Uttar Pradesh integrated modified double slope solar still with activated adsorption bed has been applied. Arsenic contamination in Gomti river at five places were found in the river water in the range of 55.70 ppb to 681.60 ppb, which exceed the maximum permissible limit of 10 ppb as recommended by WHO. Maximum concentration of arsenic in water was found in Mohan Maekins (681.60 ppb). However, mean arsenic concentration in water followed the order: Gaughat (115.37 ppb) < Hanuman setu (297.80 ppb) < Barrage (302.62 ppb) <Kukrail (336.27 ppb) < Mohan Maekins (481.89 ppb). The amount of adsorbed arsenic was increased with increasing initial concentration of arsenic. The aim of this study is to develop a low-cost process for the removal of arsenic effectively including the production of potable water. After results, data were analyzed with ICP-MS method and also verified with Langmuir and Freundlich adsorption isotherm models.

Outbreaks Where Food Workers Have Been Implicated in the Spread of Foodborne Disease. Part 9. Washing and Drying of Hands To Reduce Microbial Contamination

2010 ◽  
Vol 73 (10) ◽  
pp. 1937-1955 ◽  
Author(s):  
EWEN C. D. TODD ◽  
BARRY S. MICHAELS ◽  
DEBRA SMITH ◽  
JUDY D. GREIG ◽  
CHARLES A. BARTLESON
Keyword(s):  
High Speed ◽  
Microbial Contamination ◽  
Potable Water ◽  
Hand Washing ◽  
Skin Damage ◽  
Foodborne Outbreak ◽  
Toilet Paper ◽  
Diarrheal Episode ◽  
Single Use ◽  
Food Workers

During various daily activities at home and work, hands quickly become contaminated. Some activities increase the risk of finger contamination by pathogens more than others, such as the use of toilet paper to clean up following a diarrheal episode, changing the diaper of a sick infant, blowing a nose, or touching raw food materials. Many foodborne outbreak investigation reports have identified the hands of food workers as the source of pathogens in the implicated food. The most convenient and efficient way of removing pathogens from hands is through hand washing. Important components of hand washing are potable water for rinsing and soaps to loosen microbes from the skin. Hand washing should occur after any activity that soils hands and certainly before preparing, serving, or eating food. Antimicrobial soaps are marginally more effective than plain soaps, but constant use results in a buildup of the antimicrobial compound on the skin. The time taken to wash hands and the degree of friction generated during lathering are more important than water temperature for removing soil and microorganisms. However, excessive washing and scrubbing can cause skin damage and infections. Drying hands with a towel removes pathogens first by friction during rubbing with the drying material and then by wicking away the moisture into that material. Paper rather than cloth towels should be encouraged, although single-use cloth towels are present in the washrooms of higher class hotels and restaurants. Warm air dryers remove moisture and any surface microorganisms loosened by washing from hands by evaporation while the hands are rubbed together vigorously; however, these dryers take too long for efficient use. The newer dryers with high-speed air blades can achieve dryness in 10 to15 s without hand rubbing.

A Novel Bone Collector Designed for Intraoral Harvesting

2013 ◽  
Vol 749 ◽  
pp. 384-387
Author(s):  
Ai Jiang ◽  
Yong Bo Gao ◽  
Xi Feng Wu ◽  
Yan Ming Zhou ◽  
Hong Chen Sun ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Literature Search ◽  
Low Cost ◽  
Centrifugal Separation ◽  
Separation Principle ◽  
Dental Clinic ◽  
The One

Objective:The aim of the article was to systematically evaluate a novel bone collector designed by authors for intraoral harvesting.Method: An electronic combined with a hand literature search was conducted and comparative analysis was performed focusing on the principle,quantity,decontamination and cost between author-designed collector and the one recommended in literature.Result: The collectors recommended in literature all are based on filter principle and contain different size of sieve for collecting bone debris which have the disadvantage of lower bone volumes,suction blocking easily and particularly susceptible to oral microbial contamination.While the bone collector designed by authors is based on dynamics principle and centrifugal separation principle and appeares to be higher efficient,effective decontamination in bone collection and low cost. Conclusion: The principle of the bone collector designed by authors was innovative and will have good application in ordinary native dental clinic for providing efficient osteogenesis,less trauma and less cost.

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