1.0رادین گستر سینا نماینده انحصاری دستگاه رسوب زدا هیدروفلوhttps://rgspath.com/en/arad97https://rgspath.com/en/author/arad97/Sewage biological treatmentrich600338<blockquote class="wp-embedded-content" data-secret="F09k1uaUkA"><a href="https://rgspath.com/en/sewage-biological-treatment/">Sewage biological treatment</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://rgspath.com/en/sewage-biological-treatment/embed/#?secret=F09k1uaUkA" width="600" height="338" title="“Sewage biological treatment” — رادین گستر سینا نماینده انحصاری دستگاه رسوب زدا هیدروفلو" data-secret="F09k1uaUkA" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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https://rgspath.com/wp-content/uploads/2021/09/تصفیه-بیولوژیک-فاضلاب-و-بایوفیلم.jpg1920304[vc_row][vc_column][vc_column_text] Sewage biological treatment A large part of the sewage treatment process is the reduction of BOD and COD. One of the main indicators of sewage quality is BOD or Biochemical Oxygen Demand. By measuring the amount of oxygen consumed in a sample of water after five days, the amount of microorganisms and bacteria […]