Nutrient Removal — Process Challenge

リン・リン酸除去(栄養塩規制対応)

厳格化する放流許可基準により、自治体および工業用プラントは低い全リン規制値を満たすため、化学的リン除去のための金属塩凝集剤を投与する必要に迫られています。これは一般的な濁度澄清水処理とは異なる、許可主導の定期バルク凝集剤需要です
Updated Jun 2026
ソリューションアプローチ

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 (6)
Ferric Chloride
CAS 7705-08-0
酸・塩類
High-performance coagulant
1773 (FERRIC CHLORIDE) · Class
In catalog. Ferric iron binds orthophosphate as insoluble ferric phosphate that settles or filters out; the workhorse P-removal coagulant
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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Ferrous Sulfate
CAS 7720-78-7
酸・塩類
pH調整
In catalog. Lower-cost iron source; iron precipitates phosphate after oxidation, commonly dosed to aeration basins
Physical Description: Ferrous sulfate appears as a greenish or yellow…   Appearance: White orthorhombic crystals, hygroscopic   沸点:> 300 °C
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Aluminium Sulfate (alum)
CAS 10043-01-3
酸・塩類
標準的な alum 系凝結剤
3264 (ALUMINUM SULFATE, SOLUTION) · Class
In catalog. Aluminum precipitates phosphate as aluminum phosphate and co-coagulates fine solids
融点:-16 °C   沸点:101 °C at 760 mmHg   密度:2.71 at 20 °C 1.7 at 20 °C
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Poly Aluminum Chloride (PAC)
CAS 1327-41-9
特殊添加剤
キレート化 / 金属イオン封鎖
In catalog. Pre-hydrolyzed aluminum coagulant that removes phosphate with less alkalinity consumption and lower sludge volume than alum
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Aluminum Chlorohydrate (ACH)
CAS 12042-91-0
特殊添加剤
コンディショニング
In catalog. Highly basic, high-aluminum coagulant for phosphate precipitation with minimal pH depression
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Sodium aluminate
CAS 1302-42-7
Alkaline aluminum source that precipitates phosphate while adding alkalinity, suited to low-alkalinity waters where alum would crash pH
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