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LODOred - Model 100k -Surplus Activated Sludge Disposal
Disposal of surplus activated sludge is becoming a major environmental and economical problem within the European Union. Transposition of the Urban Wastewater Treatment Directive (91/271/EEC) and, in some cases, further development by EU-member countries of the Sewage Sludge (86/278/EEC) and Landfill of Waste (99/31/EC) Directives, along with the likely new development of a stricter Sewage Sludge Directive, define a legal framework with increasingly stringent treatment and disposal limitation which requires continuous additional investment and cost.
Given this situation, Bioazul S.L has development LODOred-100k, an innovative and environmentally friendly product based on enzyme stabilisers and vitamin amongst others. LODOred-100kenhances the catabolic efficiency of bacteria found in activated sludge system and slow down their capacity to generate new biomass, resulting in the reduction of the surplus sludge in the source.

The product is design to induce a change in biomass metebolism and in particular in the balance catabolism/anabolism. Organic matter degradation (catabolism) is promoted through a mixture of vitamins and enzyme stabilisers while new cell biosynthesis (anabolism) is slowed down by means of other substances.
Since bacteria become more efficient to remove the incoming BOD load and new biomass generation is controlled, less bacteria will be required to remove the same BOD load.
Up to 45% surplus sludge reduction is then achieved prompting great savings in sludge management.
All aerobic biological wastewater treatment plants (municipal and industrial applications).



Reduction of sludge quantities of up to 45% and considerable decrease of attended sludge disposal costs. Example : Wastewater treatment system (30.000 PE)
- Simple and not time consuming use and dosage.
- Necessary infrastructure (dosage pump, storage reservoir) is existing standard equipment.
- Increased stability in the biological process and improved sedimentation behaviour of the sludge due to a more compact structure of sludge floccules.
- Drastic reduction of surplus sludge production after 4 to 6 weeks.
- Substantial reduction of polymer consumption.
- Increased biological efficiency and plant resilience.
- Improved floc structure often leading to better settleability and dewaterability of the sludge.
- No pollutants added to the sludge (agricultural use is still possible after dosing)

- LODOred-100k is delivered to your wastewater treatment plant as a liquid concentrate. The product is pumped directly from the canister into the activated sludge basin (for small plants dilution may be required using tap water). Continuous dosage must be ensured by means of a suitable dosing pump and the dosing rate will be adjusts by the Bioazul technical staff for each WWTP to achieve optimal cost-efficiency. Microbiological contamination of the product must be always avoided.
- Health and Safety/Environmental protection
- LODOred -100k is 100 % biodegradable and its pH is neutral. The composition of the product is not hazardous either to the people or to the environment and it is not classified as dangerous according to European law. A Material Safety Data Sheet is available upon request.
- In order to guarantee our clients a high quality product LODOred-100k is permanently controlled by internal and external laboratories.
