LimnoTec Abwasseranlagen GmbH: WWTP's, wastewater treatment plants, sewage treatment plants, SBR-plants, DIC-SBR-plants, RS-SBR-plants, concrete shuttering, dynamic simulation, ASM, wastewater treatment techniques, turnkey, modernization, extension, civil engineering, mechanical engineering, process engineering, electrical engineering, E-MSR-technique, anaerobic tanks, digestors, biogas tanks, rainwater reservoirs, settling tanks, activated sludge tanks, activated sludge process, biological phoshorelimination, nitrogen elimination, nitrification, denitrification, surplus activated sludge treatment, phoshor recycling, general plant engineering, specialist for construction, environment, funnel, cone- and eggshape shuttering, segment- and cylindrical shuttering, specialist for shuttering

Navigation: Home > Process engineering > DIC-SBR process

The DIC-SBR process - the most intelligent solution to treat wastewater -

The DIC-SBR activated sludge process (Differential Internal Cycle-strategie - Sequential Batch Reactor) is an up-to-date and cost-saving solution to treat wastewater biologically. It was developed and patented by Dr. Niels Chr. Holm, (manager at LimnoTec). Since 1997 built in several plants this process has been established in practice and proved competitive:

Not only organic compounds but also ecologically dangerous nitrate and phosphate are biologically largely eliminated. Therefore the amount of elimination exceeds the legal demands by far.

All biological treatment stages, including the sludge settling, are carried out in one reactor only. The filling phase is very short, achieved by chock-loading. First of all the mechanically treated wastewater flows into a buffer-tank. This tank adjusts the reactor-influent of different wastewater fractions according to the demands (see figure).

Sewage plant	Size	Number	Effluent [mg/l] *			[ml/g]
Name	Inhabitants	SBR	COD	N_total	P_total	ISV
Bad Karlshafen	7,800	2	24	1.5	1.4	70
Spenge	22,500	3	21	1.3	1.2	65
Weißtal	9,200	2	18	5	0.8	70
Deuz	12,800	3	18	2.0	1.0	80
Heßheim	62,000	4	30	2.0	1.2	45
Büdingen	4,500	2	30	3.0	1.5	45
Büddenstedt	4,500	2	35	3.0	1.5	80
Bad Zwischenahn	31,000/41,000	3	50	3.0	0.7	70
Polenz	20,000	3	29	3.0	1.7	80
Prossen	10,500	2	37	2.5	0.5	60
Hettstedt	30,000	3	27	3.0	1.5	65
Nammen	8,500	2	31	1.4	0.5	60
Zierenberg	5,250	2	28	0.6	1.4	60
Bruchmühlen	11,250	3	26	0.5	1.2	80
Huntlosen	10,000	2	under construction
Radeburg	20,000	3	under construction
Überherm	18,000	3	under construction

*BOD-Values <5 mg/l

Due to its flexibility and safety in operation, the DIC-SBR activated sludge process is suitable for municipal and industrial wastewater. An extension is very easily performed at comparatively low costs anytime. Conventional plants can normally easily be converted or extended into DIC-SBR plants.

The requirement of personel is low because the whole treatment process is automatically performed. Additional savings in operation expenses are the result of low need of precipitants which causes a comparatively low amount of excess sludge. In addition to the high safety in operation, the servicing is easy and the plants exhibit low emission levels of noise and odour.

home | view print | to the top