Volcanic rock filter material

This lightweight, porous filter features a dark brown surface with a rough cross-section and contains abundant mineral and trace elements, forming spherical particles ideal for microbial growth and biofilm formation. Widely applicable to aeration biofilters and advanced treatment of micro-polluted water sources (including domestic, municipal, and industrial wastewater), it effectively achieves water reuse objectives.

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Product Description
Specification

Product Description

Product Introduction

Volcanic rock biofilter media is an innovative biological biofilm filter material.

Specification

Project	Metric	Project	Metric
Proportion g/cm³	1.40	Si02%	43.27
Porosity >%	45–82	Ca0%	9.86
COD removal rate >%	85	Mg0%	1.49
BOD removal rate ≥%	75–93	Fe203%	11.86
Compression strength Mpa	5.78	Al203%	14.71
Rate of wear ≤%	<1	Specific volume T/m3	1.40

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Volcanic rock filter material

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