<div style="mso-element:para-border-div;border-top:double windowtext 1.5pt;
border-left:none;border-bottom:double windowtext 1.5pt;border-right:none;
padding:1.0pt 0cm 1.0pt 0cm">

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;line-height:normal;border:none;mso-border-top-alt:double windowtext 1.5pt;
mso-border-bottom-alt:double windowtext 1.5pt;padding:0cm;mso-padding-alt:1.0pt 0cm 1.0pt 0cm">Metals are deformed by
some mechanisms such as oxidation and corrosion. In order to protect metals
from deformation and effect of some agents, metal coating method may be used.
Hot galvanizing, thermal spraying, electroplating and sherardizing are some of
these methods and they depend on the type of metal which will be coated to
protect to metal materials. Zinc, nickel, brass, chrome, gold, cadmium, copper,
brass, and silver are the main materials used for metal coating process.
Chromium may be the most deteriorating one within these metals because it has
negative impacts on both human and other livings. It is found in the
environment in many forms and mined in different countries. Especially chromium
+6 is considered as carcinogenic and may lead to health problems such as
allergic reactions, nose irritations and nosebleed, stomach ulcer, weakened
immune system, genetic material alteration, stomach ulcer, kidney and liver
function disorders and death. Therefore, metal<o:p></o:p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;line-height:normal;border:none;mso-border-top-alt:double windowtext 1.5pt;
mso-border-bottom-alt:double windowtext 1.5pt;padding:0cm;mso-padding-alt:1.0pt 0cm 1.0pt 0cm">coating wastewaters
including high concentrations of chrome should be cleaned and treatment is
necessary. In this study wastewater containing chrome produced by metal coating
industry was analysed by using some plant species. In this study, the reaction
of some plant species was investigated against different concentrations of chrome
solution. Main plants used for the tests are Lepidium sativum and Lemna
minor. Examining the negative effects of chrome which may harm plants and
offering more accurate wastewater treatment techniques against chromium
wastewater is possible with this method. There is significant relation between
chromium concentration and toxic level on plant germination and growth rate.
Moreover, variance analysis was applied to the results taken from experimental
study in laboratory condition with selected level of chromium level and the significance
importance was determined with our results.<o:p></o:p>

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Chromium Phytotoxicity Test of Metal Coating Wastewaters

513601

English

Metal Industry Wastewaters

Keyword : Chromium

Chromium Phytotoxicity Test of Metal Coating Wastewaters

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