Difference between Ceramsite Filter Media and Ordinary Lightweight Ceramsite
A brief comparison of the differences between ceramsite filter media and ordinary lightweight ceramsite.
Difference between Ceramsite Filter Media and Ordinary Lightweight Ceramsite
Although ceramsite filter media and ordinary lightweight ceramsite have similar names and appearances, their uses, structures, and performances are completely different. Ceramsite filter media is specifically used for water treatment, while ordinary lightweight ceramsite is used in the construction industry.
Basic Definitions
Ceramsite Filter Media: Spherical porous particles made from clay, shale, fly ash, etc., through high-temperature calcination. Specifically used for water treatment filtration and as a biological carrier, it possesses high strength and chemical stability.
Ordinary Lightweight Ceramsite: Lightweight aggregate made from clay, shale, expanding agents, etc., through high-temperature calcination. Primarily used in building concrete, insulation materials, and agronomy, emphasizing lightweight and insulation properties, with relatively lower strength requirements.
Performance Comparison
Specifications | Ceramsite Filter Media | Ordinary Lightweight Ceramsite |
Apparent Density | 0.8-1.2 g/cm³ | 0.5-0.8 g/cm³ (Lighter) |
Compressive Strength | ≥5 MPa | 1-3 MPa |
Breakage Rate | ≤3% | >5% |
Pore Type | Open (Water Flow) | Closed (Insulation) |
Surface | Rough and Porous | Relatively Smooth |
Structural Differences
Ceramic granule filter media requires well-developed open pores with interconnected pores to allow water flow to penetrate and fully contact the filter media, while also providing attachment space for microorganisms.
Ordinary lightweight ceramic granules are mostly closed-pore, with independent internal pores. This is beneficial for lightweight and heat insulation, but it is not conducive to water flow through the porous structure.
Summary
The core difference between ceramic granule filter media and ordinary lightweight ceramic granules can be summarized as follows: ceramic granule filter media is a high-strength water treatment material with open pores; ordinary lightweight ceramic granules are a low-strength building material with closed pores. When purchasing, performance test reports (compressive strength ≥ 5MPa, breakage rate ≤ 3%) should be used as the standard; judging solely by appearance can easily lead to misjudgment. Products with insufficient strength or too many closed pores cannot meet water treatment requirements.