Nitrates
Bacteria in wastewater collection systems will use dissolved oxygen, nitrate, and sulfate as oxygen sources for respiration, in that order of preference. Dissolved oxygen is usually present in fresh wastewater, but is rapidly depleted by biological activity.
Magnesium Hydroxide
Magnesium hydroxide (Mg(OH)2) is a chemical treatment for wastewater, used for hydrogen sulfide (H2S) control in wastewater collection systems and at treatment plant headworks processes.
Iron Salts Addition
Iron Salts are a chemical treatment for wastewater, often added to wastewater collection systems upstream from treatment plant influent to control hydrogen sulfide emissions.
Hydrogen Peroxide
Hydrogen peroxide (H2O2) is a powerful oxidant that oxidizes hydrogen sulfide (H2S), with byproducts of sulfur, water and oxygen. Hydrogen peroxide is commonly injected…
Oxygen Injection
Anaerobic conditions in force mains are common because oxygen transfer to the wastewater is limited. Oxygen injection is a chemical treatment option that prevents this from happening by providing supplemental oxygen.