"ट्रिकलिंग फ़िल्टर": अवतरणों में अंतर
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छो clean up, replaced: कारन → कारण AWB के साथ |
Rescuing 2 sources and tagging 0 as dead.) #IABot (v2.0.1 |
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पंक्ति 6:
== बाहरी कडिया ==
*[https://web.archive.org/web/20131104202444/http://web.deu.edu.tr/atiksu/ana52/atgrow.ppt Overview of Biological Wastewater Treatment]
*[https://web.archive.org/web/20131104202441/http://web.deu.edu.tr/atiksu/ana52/ani4041.html The History of Fixed-Film Wastewater Treatment Systems]
[[श्रेणी:पानी की सफाई]]
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