1. Natural zvinhu sefa midhiya
1). Jecha requartz
- Chikamu chikuru isilicon dioxide (SiO₂), ine kuoma kwakanyanya (Mohs kuoma 7) uye kusimba kwemakemikari akasimba. Inoshandiswa zvakanyanya mumasefa ekurapa emvura.
- Zvinozivikanwa: 0.5-1.2mm (kusefa yakakora), 0.3-0.5mm (kusefa kwakanaka), zvinoreva "Standard for Quartz Sand Filter Media for Water Treatment" (CJ/T 43-2005).
- Zvakaipa: kuwanda kwepamusoro (2.65g/cm³), kushandiswa kwesimba rekugezesa kumashure.
2). Anthracite
- Porosity inosvika 50%-60%, iine adsorption yakasimba, uye inowanzo shandiswa nejecha requartz kugadzira tangi ine-double-layer filter.
- Saizi yezvikamu: 0.8-1.8mm, density 1.4-1.6g/cm³ (yakareruka kupfuura jecha requartz, rinogona kuderedza kushambidzika kwemusana).
3). Zeolite
- Maion exchange echisikigo, ane adsorption akakosha paammonia nitrogen uye heavy metals, akakodzera kuchenesa mvura yemvura.
2. Synthetic polymer zvinhu sefa midhiya
1). Polypropylene (PP) fiber
- Inoshingirira asidhi nealkali (pH 1-14), anti-microbial corrosion, inogadzirwa kuita mabhegi esefa kana zvinhu zvesefa, zvinoshandiswa mumaindasitiri emakemikari nechikafu.
- Kukwenenzverwa kwesefa: 1-100μm (yakagadziridzwa zvichienderana nekuruka kwekuruka).
2). Polyester (PET) isina{2}}mucheka wakarukwa
- Kusimba kwepamusoro uye kupindira kwemhepo kwakanaka, kunowanzo shandiswa mukusefa kwemhepo (seHEPA sefa).
3). Polyethylene (PE) sintered sefa chinhu
- Chimiro cheMicroporous chakaumbwa nepamusoro-kupisa sintering, nekururama kunosvika 0.1μm, inoshandiswa kugadzira mvura yemhando yepamusoro.
3. Metal uye ceramic filter media
1). Stainless simbi waya mesh
- Model 304/316L, inodzivirira tembiricha yepamusoro (Isingasviki kana kuenzana ne800 degree), pore size range 20-200 mesh, inoshandiswa mupetroleum neindasitiri yemishonga.
2). Porous ceramics
- Made of alumina or silicon carbide, with a compressive strength of >10MPa, inokodzera-tembiricha yekubvisa huruva yegasi (senge zvirimwa zvekupisa tsvina).
4. Zvinhu zvakakosha zvinoshanda
1). Activated carbon
- Nzvimbo chaiyo inokwana 500-1500m²/g (inoreva "Coal Granular Activated Carbon Standard" GB/T 7701.1-2008), inogona kudsorb organic matter uye yasara chlorine.
2). Magnetic filter media
- The surface is loaded with Fe₃O₄, and the metal particles in oily wastewater are quickly separated by magnetic field, with a recovery rate of >90%.
Mazano akawedzerwa:
- Composite filter media (senge "quartz sand + activated carbon") inogona kufunga nezvesefa yemuviri uye kushambadza kwemakemikari;
- Zvishandiso zviri kubuda senge graphene sefa membranes (kukwenenzverwa kwechokwadi 0.001μm) zvichiri murabhoritari uye zvinodhura.