Search results
Results from the Tech24 Deals Content Network
Submerged membrane bioreactor systems became preferred to side stream configurations, especially for domestic wastewater treatment. The next key steps in membrane bioreactor development were the acceptance of modest fluxes (25 percent or less of those in the first generation) and the idea to use two-phase (bubbly) flow to control fouling.
There are many alternative wastewater treatment systems that can be used in place of MBBRs. The selection of the appropriate system depends on the wastewater coming in, treatment objectives, available space, and budgets. Some other options are: Sequencing Batch Reactors (SBR) Membrane Bioreactors (MBRs) Fixed Film Systems
The aerobic granules form excellent settling properties allowing for higher biomass concentrations (8g/L), the non-use of secondary clarifiers and the exclusion of major sludge recycle pumping in the Nereda system – the result is a compact (reduced plant footprints), simple system that requires significantly less chemicals and energy when ...
The RBC process allows the wastewater to come in contact with a biological film in order to remove pollutants in the wastewater before discharge of the treated wastewater to the environment, usually a body of water (river, lake or ocean). A rotating biological contactor is a type of secondary (biological) treatment process.
The membrane process utilizes biofilm, a naturally occurring substance found in lakes, rivers, rocks, and other natural formations. [4] They are utilized by causing the necessary biomass/organic matter to attach to the desired area. The solid particles are too big to permeate the membrane, so only pure liquid is able to get through.
Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. [ 1 ] : 11 The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option.
A trickling filter is a type of wastewater treatment system. It consists of a fixed bed of rocks , coke , gravel , slag , polyurethane foam , sphagnum peat moss , ceramic , or plastic media over which sewage or other wastewater flows downward and causes a layer of microbial slime ( biofilm ) to grow, covering the bed of media.
Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.