In water treatment, filter media is a core consumable. The conventional media that dominate the industry — quartz sand and activated carbon — share familiar shortcomings: limited filtration accuracy, a tendency to cake in long-term operation, weak solids-holding capacity and high replacement frequency. These not only drag down effluent quality but also raise equipment O&M and labour costs. It is against this backdrop that a new functional medium has emerged — JCAFM glass filter media — solving conventional problems through differentiated performance. Read on for a one-minute guide to this new industry material.

1. What Is JCAFM Glass Filter Media?

JCAFM glass filter media is a new type of functional water treatment medium made from recycled glass as the substrate, produced through precision classification together with a dual nano-activation and catalytic activation process. Put simply, ordinary recycled glass is given a deep functional upgrade: microscopic structural reshaping and charge modification turn a substrate capable only of basic interception into one with powerful electrostatic adsorption, precise filtration and catalytic antibacterial capability. It is emphatically not simply crushed glass — it is a standardised, engineered professional water treatment consumable with controllable performance parameters, far exceeding ordinary glass media on every metric.

2. Core Differences: JCAFM Glass Filter Media vs. Quartz Sand (Six Dimensions)

In real projects the performance gap between JCAFM glass filter media and mainstream quartz sand media is substantial. Based on measured data, the following objective comparison covers six dimensions — filtration mechanism, biological resistance, service life and more — making clear where each medium fits and how they differ.

Difference 1: Filtration mechanism and efficiency (the core gap)

Quartz sand: relies purely on mechanical interception, which imposes a natural ceiling on filtration accuracy. Removal of micron-scale colloids and fine suspended particles is weak, and water quality cannot be improved further without external assistance.

JCAFM glass filter media: employs a triple composite filtration mechanism comprising mechanical filtration (physical interception), electro-mechanical filtration (electrostatic adsorption) and selective molecular sieve plus catalytic filtration (chemical adsorption). It reaches 97% filtration efficiency without dosing flocculant. The numbers speak for themselves: quartz sand has a specific surface area of only about 0.293 m²/g, while modified JCAFM glass filter media reaches 3.451 m²/g — a dramatic increase in adsorption capacity.

Difference 2: Biological attachment and growth

Quartz sand: over time microorganisms attach to the media surface, forming biofilm and breeding bacteria. This triggers bed caking and flow wormholing, progressively weakening filtration and raising the risk of exceeding water quality limits.

JCAFM glass filter media: the substrate is catalytically activated, giving inherent biological resistance and self-disinfection that suppresses microbial attachment and reproduction. It resists caking and does not form bypass wormhole channels, giving greater water quality stability in long-term operation.

Difference 3: Service life and replacement cost

Quartz sand: under normal conditions it requires full replacement roughly every 2 years. Replacement consumes large volumes of material at high labour cost, and disposing of spent quartz sand is difficult — total long-term O&M cost is high.

JCAFM glass filter media: chemically stable and non-powdering, with a service life of over 15 years. Full replacement is not required, and annually only a small top-up is needed for media lost in operation — sharply reducing consumable, labour and waste disposal costs.

Difference 4: Backwash energy and water consumption

Quartz sand: limited solids-holding capacity means short backwash cycles and high water use per backwash, leading to significant water consumption over time.

JCAFM glass filter media: much higher solids-holding capacity extends the backwash cycle to twice that of quartz sand, while each backwash takes only half as long — cutting total backwash water demand by around 50%. Its bulk density is just 1.25 t/m³ (quartz sand is 1.7 t/m³), so the same filter vessel needs less media, lowering civil works and loading costs.

Difference 5: Leaching and membrane system risk

Quartz sand: slowly releases free silica into the water, with release rising markedly under alkaline or high-temperature conditions. Once silica reaches membrane systems such as reverse osmosis it forms silica scale, reducing membrane flux and, in severe cases, causing irreversible damage to membrane elements.

JCAFM glass filter media: the molecular structure of the glass substrate is stable and the silica is locked in a firmly bound state, so no significant free silica is released during operation. This protects downstream membrane equipment and reduces the risk of membrane fouling.

Difference 6: Surface charge and overall adsorption

Quartz sand: with a point of zero charge around pH 1, its surface charge behaviour is weak. It adsorbs charged impurities, oil droplets and organics poorly, achieving only physical interception.

JCAFM glass filter media: nano-activation modification leaves the surface strongly negatively charged, so suspended particles, oil droplets, large-molecule organics and some heavy metal ions are efficiently adsorbed electrostatically — a far broader purification capability than purely physical filtration.

3. Multi-Scenario Fit Across the Full Water Treatment Spectrum

Thanks to these combined performance advantages, JCAFM glass filter media suits water treatment across many industries: oily wastewater treatment, industrial circulating and process water, municipal WWTP upgrading, pool and landscape water treatment, ultrapure water pre-treatment for semiconductors, and pre-treatment for membrane processes such as reverse osmosis and nanofiltration. In practice it can replace conventional media — quartz sand, fibre balls, activated carbon — without major modification to existing equipment.

4. Behind the Technology: China's Core R&D Capability

In China, Beijing Jingci New Materials Technology Co., Ltd. is the core developer and supplier of JCAFM glass filter media. The company focuses on advanced water treatment media and turnkey solutions, working closely with universities including Tsinghua University and Beijing University of Chemical Technology through joint R&D laboratories, and iterating product performance on the strength of a well-developed industry–academia system. It has established strategic cooperation with major enterprises such as Sinopec and Beijing BBMG Group. Its business covers water treatment solution design, media supply, equipment integration, engineering construction and O&M outsourcing. To learn more about technical parameters and project references, visit www.bjjcxc.com

Summary

Overall, JCAFM glass filter media offers clear combined advantages over conventional quartz sand in filtration accuracy, service life, O&M cost and fouling resistance, making it an excellent choice for media upgrades. We welcome fellow water treatment professionals to share their experience and technical questions, and to discuss media retrofit options together. Beijing Jingci New Materials will continue to improve its product range and deliver efficient, low-carbon water treatment solutions to the industry.