Positive aqua solutions-D™ takes a fresh look at aerated lagoon systems to overcome the traditional inefficient 'top down' induction approach to save you time and energy.
The standard Pas-D™ unit uses a 4Kw system with programmable variable speed drive with timers and sensors to reduce power requirements when optimum DO (Dissolved Oxygen) levels are achieved .
The number and capacity of the Pas-D™ units will depend on a number of factors and requirements of the site. For detailed advice on your requirements to obtain optimum results, please contact us.
Pas-D™’s unique 'bottom up' approach is specifically engineered to avert sludge bulking and free trapped gases for oxidisation in the water column. Wastewater is drawn up through a gas fluid aspirator to maximise oxygen uptake and dispersal with the minimum of energy inputs. The efficient mixing and oxygen dispersal properties of Pas-D™ provides favourable vertical thermohaline circulation and destratification pulling algae cells below the photo-zone to prevent growth. In the absence of algae nd low terminal TSS settling, discharge limits of 10mg/L, both for TSS and BOD5 are readily achievable.
How can Pas-D™ help?
Pas-D™ high-performance aerobic destratification systems are best suited to municipal and industrial wastewaters of low strength. The land requirements for Pas-D™ treatment is 80% less than that of an equivalent capacity facultative, oxidisation system. Giving you room to grow your business, expand your capacity and provide a far greater level of treatment.
Arranged appropriately in deep well designed ponds the reduction surface area and heat exchanged promotes matchless dissolved oxygen and longer aerobic bacterial survival. Pas-D™ further provides thorough mixing and thermal destratification throughout the water body with minimal power inputs.
The single greatest factor in reducing energy consumption is the employment of automated control systems. Dissolved oxygen probes and analysers are the most commonly used instruments to measure the level of dissolved oxygen in the wastewater and provide a variable signal to adjust air flow and water level. Optional intelligent control and reporting systems include telemetric abilities which enable you or our technical teams to remotely monitor, diagnose and troubleshoot dissolved oxygen and biological issues irrespective of their geographical location.