scholarly journals Natural coagulants: analysis of potential use for drinking water treatment in developed and developing countries

2018 ◽  
Vol 103 ◽  
pp. 307-314
Author(s):  
B. García-Fayos ◽  
J.M. Arnal ◽  
M. Sancho
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Natural Coagulants ◽  
Potential Use

Overcoming the drawbacks of natural coagulants for drinking water treatment

2007 ◽  
Vol 7 (4) ◽  
pp. 87-93 ◽  
Author(s):  
K. Ghebremichael
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Ion Exchange ◽  
Crude Extract ◽  
Exchange Process ◽  
Drinking Water Treatment ◽  
Animal Origin ◽  
Nutrient Loads ◽  
Natural Coagulants ◽  
The Impact

A number of natural coagulants from plants or animal origin can be effectively used for the treatment of drinking water. Some are used at household levels in traditional systems using crude (non-purified) extract. In the crude extract form, natural coagulants release organic and nutrient loads to the water resulting in poor treated water quality. In such cases it becomes necessary to purify the coagulant component from the crude extract before using it for water treatment. This paper discusses an effective and simple purification of the coagulant from Moringa oleifera seed using an ion exchange method that would overcome the drawbacks of natural coagulants. The impact of the purification process on reducing organic and nutrient release was studied. Adsorption and elution parameters of the ion exchange process were optimised. The study indicated that the purified protein has effective coagulation activity and it did not release organic and nutrient loads to the water. Compared to other purification methods used in previous studies, this is simple and of comparatively lower cost. This purification method can be readily scaled up and applied even in remote parts of developing countries. This work suggests that the concerns of natural coagulants can be overcome by simple purification and this is believed to promote their use in drinking water treatment.

Biocatalytic perchlorate reduction: kinetics and effects of groundwater characteristics

2015 ◽  
Vol 1 (6) ◽  
pp. 913-921 ◽  
Author(s):  
Justin M. Hutchison ◽  
Julie L. Zilles
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Reduction Kinetics ◽  
Perchlorate Reduction ◽  
Reducing Activity ◽  
Kinetics Of ◽  
Potential Use

This paper evaluates the kinetics of perchlorate-reducing biocatalysts and the effects of groundwater characteristics. Under conditions tested such as varying temperature, pH and NOM, the biocatalysts maintained robust perchlorate reducing activity, supporting their potential use in drinking water treatment.

ASSESSMENT OF ELECTROCOAGULATION PROCESS FOR DRINKING WATER TREATMENT

2015 ◽  
Vol 14 (6) ◽  
pp. 1347-1354 ◽  
Author(s):  
Florica Manea ◽  
Anamaria Baciu ◽  
Aniela Pop ◽  
Katalin Bodor ◽  
Ilie Vlaicu
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Electrocoagulation Process
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