DeAmmon - Efficient Nitrogen Removal
Eutrophication is a growing global challenge. The delicate balance between aquatic organisms and plants are threatened by algae blooms as a clear symptom. An important measure to solve this problem is to minimize the leaching of nitrogen from wastewater, sewage treatment plants and biogas plants. Traditionally, organic nitrogen taken care of by natural nitrifikation- and denitrification processes. With increased public pressure and stricter legislation, the costs of reducing the amount of organic nitrogen increased dramatically. To reduce the operating costs of nitrogen reduction processes, Purac has invented DeAmmon process - a shortcut in the nitrogen cycle.
In nature and in traditional sewage treatment plant micro-organisms break down ammonia nitrogen from organic matter in three steps: ammonium is oxidized to nitrite (nitrification), then to nitrate (nitratationsprocessen) and then eventually consume the carbon source to produce nitrogen. Just a few decades ago, it was discovered that anammoxbakterien could convert ammonium and nitrite nitrogen gas directly to a 'shortcut' that DeAmmon® Purac's technology is built on. In comparison to traditional nitrogen reduction processes need DeAmmon® 60% less energy and does not require the addition of a carbon source.
Purac's one-step installation for DeAmmon® suited for lower nitrogen concentrations - about 1000 mg of ammonia nitrogen per liter, which is common in small to medium sized wastewater treatment plants. In a one-step system, waxes Anammox-organisms inside the plastic support which then a layer of biofilm nitritifierar bacteria have grown over. The nitrogen-rich inflow aired intermittently in tanks where the carriers are in suspension. The process is very stable for variations in flow and nitrogen levels, and it can convert almost 90% of the ammonium to nitrogen gas. One-step installation for DeAmmon® is easy to operate with excellent process stability.
DeAmmon by Purac
Purac has all the experience and knowledge needed to effectively implement your DeAmmon® projects. We can handle various sizes of projects up to turnkey contracts of works included. Our project for the assembly and installation ensures that the plant will effectively deployed. Our process department follows up the process for a period after start-up. Other offers are education and training, plant operation and full-service contracts.
Experience, quality, availability
Purac was one of the pioneers in the wastewater and biogas industry. Through the years we have designed and built more than 100 biogas plants in 20 countries. Today, we have extensive experience in the pretreatment of substrates, anaerobic digestion, deammonifikation of digestate and efficient extraction of biomethane. We are known in the industry for the quality and the high availability of our facilities.