Coagulation Clarification — Process Challenge

硫酸鉄・アルミン酸ナトリウムによる凝集処理

多くの自治体の浄水場および除リンプログラムでは、硫酸鉄またはアルミン酸ナトリウムが指定薬品として採用されており、バルクまたはタンカー供給にて指定された薬品名で調達されます。
Updated Jun 2026
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RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Treatment Workflow
1
Water & System Assessment
Characterize the water and the system — hardness, alkalinity, pH, TDS/conductivity, microbial load, and the metallurgy and temperatures of the equipment being protected.
2
Program & Chemistry Selection
Match coagulants, flocculants, scale and corrosion inhibitors, biocides, or pH adjusters to the water profile and discharge limits, factoring compatibility with any existing program.
3
Jar Testing & Dosing
Confirm coagulant and flocculant dose and feed point by jar test, set inhibitor and biocide treat rates, and size packaging (drums, totes, bulk) to consumption.
4
Monitoring & Control
Track residuals, turbidity, ORP, corrosion coupons, and effluent compliance, adjusting chemistry and dose as feedwater and load change.
Recommended Chemistries (5)
Polyferric Sulphate (PFS)
CAS 10028-22-5
酸・塩類
Iron-based coagulant
In catalog. Pre-polymerized ferric sulfate coagulant that destabilizes colloids over a wide pH band with lower dose and less sludge than plain ferric salts
融点:The Anhydrous form decomposes (480ºC)   沸点:The Anhydrous form decomposes (480ºC)   密度:3.1 at 20 °C
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Ferrous Sulfate
CAS 7720-78-7
酸・塩類
pH調整
In catalog. Iron(II) coagulant source; once oxidized, ferric hydroxide flocs sweep solids and bind phosphate
Physical Description: Ferrous sulfate appears as a greenish or yellow…   Appearance: White orthorhombic crystals, hygroscopic   沸点:> 300 °C
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Ferric Chloride
CAS 7705-08-0
酸・塩類
High-performance coagulant
1773 (FERRIC CHLORIDE) · Class
In catalog. Alternative ferric coagulant for the same charge-neutralization and sweep-floc clarification mechanism
融点:306 °C   沸点:315 °C at 760 mmHg (Decomposes)   密度:2.8 at 20 °C (anhydrous solid)
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Ferric sulfate (/dry coagulant grade)
CAS 10028-22-5
酸・塩類
Iron-based coagulant
Ferric ion neutralizes colloid charge and forms ferric hydroxide sweep flocs; the specifically named commodity coagulant buyers request
融点:The Anhydrous form decomposes (480ºC)   沸点:The Anhydrous form decomposes (480ºC)   密度:3.1 at 20 °C
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Sodium aluminate
CAS 1302-42-7
Alkaline aluminum coagulant that clarifies while adding alkalinity, used in low-alkalinity and softening trains
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