scholarly journals Sorption Membranes and Filter for Water Purification and Disinfection in Outdoor Conditions

2019 ◽  
Vol 3 (1) ◽  
pp. 35
Author(s):  
Igor Zhuravlev
Keyword(s):  
Activated Carbon ◽  
Water Purification ◽  
Organic Contaminants ◽  
Cellulose Fibers ◽  
Polluted Water ◽  
Paper Pulp ◽  
Highly Efficient ◽  
Cellulose Pulp ◽  
Dirty Water ◽  
Paper And Pulp

The aim of this article was to develop a simple, cheap, light, highly efficient sorption membrane and filtering device for the purification of naturally polluted water with application in outdoor conditions. Sorption membranes have been prepared from cellulose pulp using paper and pulp technology. The sorbents were introduced into paper pulp as a filler (as activated carbon) or were chemically grafted to cellulose fibers. The absorption ability of such membranes assembled in a filter device has been investigated. The removal of weighted small mechanical particles, microorganisms, dissolved organic contaminants and colloids, and the undesirable ion impurities by the filter was investigated. Using a 10 × 10 cm filter, purification and disinfection of 18 liters of natural polluted water from a lake was done. Purification of dirty water occurs with gravity from a tank (bucket).

scholarly journals PURIFICATION OF DUG WELL WATER USING ACTIVATED CARBON MADE FROM SAGO FIBER WASTE

2021 ◽  
Vol 3 (2) ◽  
pp. 87-100
Author(s):  
Desprianto Desprianto ◽  
Idawati Supu ◽  
Ika Suliawati ◽  
Juwita Juwita ◽  
Erfiana Erfiana
Keyword(s):  
Activated Carbon ◽  
Water Content ◽  
Water Purification ◽  
Contact Time ◽  
Ash Content ◽  
Polluted Water ◽  
Well Water ◽  
Activation Process ◽  
Average Value ◽  
Dug Well

The sago fiber waste is promising as an active carbon material which has a high adsorption in purifying water process. The objective of this research was to make activated carbon from sago fiber waste to be applied for water purification and iron (Fe) adsorption with various of contact time. The carbon activation process uses Phosphoric Acid (H3PO4) and calcined at 800 °C for 2 hours. After drying, then analyzed the water content and ash content. Furthermore, surface morphology testing was carried out using SEM. The application of activated carbon was carried out in dig well water purification and filtering iron (Fe) based on variations in contact time of 10 minutes, 20 minutes, 30 minutes and 40 minutes. Analysis of water content of activated carbon was carried out 3 times with an average value of 3.9662%. Ash content analysis aims to determine the metal oxide content in activated carbon. Analysis of the ash content of activated carbon was carried out 3 times with an average value of 5.3239%. The average value of ash content meets the quality standards of activated carbon SNI 06-3730-1995 where the standard value of ash content for powdered activated carbon is a maximum of 10%. SEM test results show that the surface of the activated carbon is porous but the size is not uniform. The level of Ferrium (Fe) in water that has gone through the purification process using activated carbon. The most effective contact time was obtained, namely 20 minutes and had met the threshold requirements for water turbidity levels according to Minister of Indonesia health. This means that activated carbon from sago fiber is able to adsorb the material contained in water and also very capable in  picking up some bad contents of cloudy and polluted water.

Single Mn atom anchored on N-doped porous carbon as highly efficient Fenton-like catalyst for the degradation of organic contaminants

2020 ◽  
Vol 279 ◽  
pp. 119363 ◽  
Author(s):  
Jingren Yang ◽  
Deqian Zeng ◽  
Qinggang Zhang ◽  
Ruofan Cui ◽  
Muhammad Hassan ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Organic Contaminants ◽  
Highly Efficient

Highly efficient metal-free electro-Fenton degradation of organic contaminants on a bifunctional catalyst

2021 ◽  
Vol 416 ◽  
pp. 125859
Author(s):  
Xin Qin ◽  
Kun Zhao ◽  
Xie Quan ◽  
Peike Cao ◽  
Shuo Chen ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Bifunctional Catalyst ◽  
Metal Free ◽  
Highly Efficient

Super-adsorptive and photo-regenerable carbon nanotube based membrane for highly efficient water purification

2021 ◽  
Vol 621 ◽  
pp. 119000
Author(s):  
Yang Yang ◽  
Zhu Xiong ◽  
Zhu Wang ◽  
Yi Liu ◽  
Zijun He ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Water Purification ◽  
Highly Efficient

Surface activated carbon nitride nanosheets with optimized electro-optical properties for highly efficient photocatalytic hydrogen production

2016 ◽  
Vol 4 (7) ◽  
pp. 2445-2452 ◽  
Author(s):  
Mohammad Ziaur Rahman ◽  
Jingrun Ran ◽  
Youhong Tang ◽  
Mietek Jaroniec ◽  
Shi Zhang Qiao
Keyword(s):  
Optical Properties ◽  
Activated Carbon ◽  
Hydrogen Production ◽  
Carbon Nitride ◽  
Surface Activation ◽  
Step Method ◽  
Highly Efficient ◽  
Thin Carbon ◽  
Carbon Nitride Nanosheets ◽  
First Time

We introduce a three-step method (co-polymerization, surface activation and exfoliation) for the first time to synthesize sub-nanometer-thin carbon nitride nanosheets as highly efficient hydrogen evolution photocatalysts.

Conductive 3D sponges for affordable and highly-efficient water purification

Nanoscale ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 4771-4778 ◽  
Author(s):  
Yanbiao Liu ◽  
Fang Li ◽  
Qin Xia ◽  
Jiawei Wu ◽  
Jianshe Liu ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Water Purification ◽  
Low Cost ◽  
Highly Efficient ◽  
Electro Oxidation ◽  
Conductive Nanomaterials ◽  
Filtration Device

We developed a low-cost method to achieve efficient organic pollutants degradation by incorporating conductive nanomaterials to assist electro-oxidation, leading to an efficient conductive nano-sponge filtration device.

Enhanced Water Purification via Redox Interfaces Created by an Atomic Layer Deposition Strategy

2021 ◽  
Author(s):  
Liming Huang ◽  
Tingting Yan ◽  
Alaa El Din Mahmoud ◽  
Shuangxi Li ◽  
Jianping Zhang ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Water Purification ◽  
Water Scarcity ◽  
Atomic Layer ◽  
Highly Efficient ◽  
Layer Deposition

The crisis of water scarcity has become one of the most urgent issues to be settled. It is still a challenge to develop a highly efficient water purification technology. In...

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