A simple and low-cost test to measure the physical strength of faecal sludge simulants is presented and used in the development of improved desludging pumps in Kampala, Uganda. The technical performance of two variants of the Gulper manual pump have for the first time been quantitatively assessed under controlled conditions. The time taken to prime and the average flow rate in the following 30 seconds are reported for both pumps on two different strengths of faecal sludge, demonstrating a distinct improvement in the redesigned Gulper II. This pump is now undergoing field trials across East Africa with a view to it being marketed and sold to pit-emptying entrepreneurs by Sanitation Solutions Group.
Sludge Blanket Level Detection – making new process opportunities possible
Much Pulsar`s Self-Cleaning Viper Sludge Sensor of the demonstrating the effective maintenance-free solution. discussion around the way we deal with sewage sludge – the way it is moved around the process, the bellmouth valves and decant processes, the downstream treatment of the liquors, important issues around TOTEX and discharge Compliance, plus more recently the green energy benefits of on-site power generation – depends in large part on the accurate and reliable measurement of the strata of the...
Controlling Sludge in Lamella Clarifiers
This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in place of conventional settling tanks. Controlling Sludge Blanket Build up Effluent enters the Lamella Clarifier via an inlet pipe, entering the plates through the side openings where the liquids and solids are then separated. The liquid...
Case study - California vineyard improves sludge movement with aeration
OverviewA California vineyard was faced with the challenge of meeting wastewater treatmentcompliance under a tight deadline defined by local regulators, while receiving ongoingodor complaints from the community.ChallengesExtended periods of mismanagement from previous owners left the facility and the wastewater treatment system in disarray. Equipment with poor mixing capabilities and frequent mechanical failure allowed sludge to build up in the lagoon to an extraordinary level, with visible islands across the...
Case study - Sludge digestion/thickening optimizes treatment
Overview: Big Park Domestic Wastewater Improvements District in Arizona had constructed a new 500,000 gallonsper day biological wastewater treatment system in 1997. As time passed, the aging plant was unable tokeep up with increasing demands. Challenge: In 2012, the District started working with Sunrise Engineering to find a solution that would work in theirexisting plant. Sunrise Engineering partnered with Aeration Industries International to upgrade theequalization basin, as well as the sludge digester/thicken...
Inhibition kinetics and granular sludge in an ANAMMOX reactor treating mature landfill leachate
The present study reports the inhibition kinetics and granular sludge in an anaerobic ammonium oxidation (ANAMMOX) – up-flow anaerobic sludge blanket reactor fed with diluted mature landfill leachate. The activity of ANAMMOX bacteria was inhibited by addition of mature landfill leachate, but gradually adapted to the leachate. The system achieved efficient nitrogen removal during 65–75 d and the average removal efficiencies for NH4+-N, NO2−-N and total nitrogen (TN) were 96%, 95% and 87%, respectively. ANAMMOX was...