7 research outputs found
Matriz termofixa fenólica em compósitos reforçados com fibras de bagaço de cana-de-açúcar
Designing of a low cost potentiostat
63-65A low cost
solid state potentiostat circuit has been designed. The circuit can provide ±
12.5 V voltage output across the working electrode (WE) and countrer electrode
(CE) and shows no oscillations in this output range. Within the output limits
of ± 12.5 V, control voltage of ± 2.0 V can be set between the working electrode
and reference electrode (RE) which is the normal working range in most of the
electrochemical studies
Application of synthetic poly-electrolytes with magnetite for purification of raw water
48-52<span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Commercially available
polyelectrolytes have been tested for clarification of raw water obtained from
river Kuakhai near Bhubaneswar, state capital of Orissa. These reagents used as
a coagulating aid, have shown the advantageous effect of decreasing turbidity
of settled water there by helping in reducing the dosages of aluminium
sulphate. The polymers adjuncted with magnetite particles have increased the
kinetics of settling. The effect of polyelectrolytes such as Magnafloc LT-27,
LT-31 and LT-225, their concentration and pH have been studied. It has
been possible to reduce the turbidity of the raw water from 234 to3 NTU. The
total dissolved solids and colour of the water has also been reduced to some
extent.</span