Odor H2s Control — Process Challenge

Controle de Odor e Sulfeto de Hidrogênio (H2S) em Efluentes

Redes coletoras, elevatórias e caixas de entrada dosam nitrato, sais de ferro ou oxidantes a granel para suprimir o sulfeto de hidrogênio que gera reclamações de odor e corrosão do concreto. A demanda é recorrente e ligada a programas municipais de controle de odor e de proteção de ativos
Updated Jun 2026
Abordagem de solução

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)
Calcium Nitrate
CAS 13477-34-4
Ácidos e Sais
Ajuste de pH
In catalog. Supplies nitrate as a preferred electron acceptor so bacteria respire on nitrate instead of generating sulfide; prevents H2S formation rather than treating it afterward
Physical Description: Colorless hygroscopic crystals
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Ferric Chloride
CAS 7705-08-0
Ácidos e Sais
High-performance coagulant
1773 (FERRIC CHLORIDE) · Class
In catalog. Ferric iron precipitates dissolved sulfide as insoluble iron sulfide, removing it from the liquid and vapor phase
Ponto de fusão:306 °C   Ponto de ebulição:315 °C at 760 mmHg (Decomposes)   Densidade:2.8 at 20 °C (anhydrous solid)
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Ferrous Sulfate
CAS 7720-78-7
Ácidos e Sais
Ajuste de pH
In catalog. Iron(II) reacts with sulfide to form FeS precipitate; a lower-cost iron source for sulfide binding
Physical Description: Ferrous sulfate appears as a greenish or yellow…   Appearance: White orthorhombic crystals, hygroscopic   Ponto de ebulição:> 300 °C
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Magnesium Hydroxide
CAS 1309-42-8
Aditivos Especiais
Ajuste de pH
In catalog. Raises and buffers pH, shifting the sulfide equilibrium toward non-volatile bisulfide ion and suppressing H2S off-gassing without overshoot
Physical Description: White odorless solid; Colorless or white solid;…   Appearance: White, hexagonal crystals   Odor: Odorless
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Hydrogen Peroxide (Leaching / Process Oxidant)
CAS 7722-84-1
Polímeros e Resinas
Peroxide-based oxidizer
2015 (HYDROGEN PEROXIDE, AQUEOUS SOLUTION, STABILIZED, WITH MORE THAN 60% HYDROGEN PEROXIDE) · Class
Oxidizes dissolved sulfide to sulfate or elemental sulfur for fast odor knockdown at problem points
Ponto de fusão:0 °C   Ponto de ebulição:150 °C at 760 mmHg   Densidade:1.11 at 20 °C
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MEA-Triazine H2S Scavenger (Oilfield)
CAS 4719-04-4
Aditivos Especiais
Conservação
2810 (HEXAHYDRO-1,3,5-TRIS(HYDROXYETHYL)-5-TRIAZINE) · Class
Reacts irreversibly with H2S to form a water-soluble non-volatile dithiazine, scrubbing sulfide from gas and liquid streams
Solubility: Soluble (>=10 mg/ml at 24 °C)   Flash Point: > 93 °C
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