Any treatment plant should be based on actual measurements of the water stream to be treated in respect of hydraulic load, suspended and dissolved organic material, and the applicable local effluent requirements. However sufficient statistical information is available for small community municipal wastewater's, related to the term " person equivalents" Pe. A system specifically designed for condominions and small residential areas, these plants are based on the following data:

PE Loading

Wastewater Flow:	Qw	200 l/Pe/day	44 GPD/Pe
Suspended Solids:	TSS	70 g/Pe/day	0.15 #/day/Pe
Organic Matter:	BOD	65 g/Pe/day	0.13 #/day/Pe
Nitrogen:	N	9 g/Pe/day	0.02 #/day/Pe
Phosphorous:	P	0.6 g/Pe/day	0.001 #/day/Pe

Standard Capacities

The EEC sewage treatment package plant system is manufactured in lengths of 1.828 m increment in order to suit any particular need. The basic 2.75 m, 4.6 m, 6.4 m, 8.23 m, 10 m, and 12 m length systems with three reactors have the following nominal capacities at a guaranteed effluent of 30 ppm BOD as daily average.

Model	9CON-3	15CON-3	21CON-3	27CON-3	33CON-3	39CON-3
Capacity	300 Pe	600 Pe	900 Pe	1200 Pe	1500 Pe	1800 Pe
Hydraulic	60 m3/d	120 m3/d	180 m3/d	240 m3/d	300 m3/d	360 m3/d
Tank Length	2.75 m	4.6 m	6.4 m	8.23 m	10 m	12 m
Tank Width	2.23 m	2.23 m	2.23 m	2.23 m	2.23 m	2.23 m
Tank Height	2.54 m	2.54 m	2.54 m	2.54 m	2.54 m	2.54 m
Shipping Weight	2200 kg	3000 kg	3800 kg	4600 kg	5400 kg	6200 kg
Operating Weight	10600 kg	19700 kg	28900 kg	38000 kg	47100 kg	56300 kg

Systems with additional requirement to effluent COD and for stringent ammoniacal nitrogen standards will normally require longer retention time and will consequently have lesser capacity then above. Such systems will be designed as customised systems based on the clients influent analysis provided.

Industrial Wastewater Treatment

Our industrial wastewater treatment plant is based on the High-Speed Bio Tech biodegradation and sedimentation technology which is unique due to its compactness and performance in respect of volumetric efficiency. These technologies are combined in a prefabricated, skid mounted or containerised tank system with variable length, suitable for overseas transportation inside or as ISO containers.

Dimensional Criteria

Any industrial treatment plant must be based on actual measurements of the waste stream with respect to hydraulic and organic load. The critical parameter is daily average flow, peak flow, and influent / effluent BOD5 and TSS.

For common applications such as pulp and paper, dairies and other applications in the Food Processing industry, there is sufficient experience at hand in order to design a system and guarantee the final effluent, based on such information. Designs for new applications should be based on a full wastewater analysis and followed up by a test program in order to verify the design and guarantee the effluent. Such tests may range from biodegradability testing in the laboratory to pilot plant testing on-site.

Capacities

The Industrial ISO -3 reactor system has the following nominal capacities at an influent BOD 1,000 ppm, TSS 500 ppm and 95% cleaning efficiency in terms of BOD.

Model	20 ISO-3	30 ISO-3	40 ISO-3
Flow	80 m3/day	120 m3/day	160 m3/day
BOD Load	80 kg/day	120 kg/day	160 kg/day

The ISO-2 reactor system has the following nominal capacities at an influent of BOD1000 ppm TSS 500 ppm and 80% cleaning efficiency in terms of BOD

Model	20 ISO-3	30 ISO-2	40 ISO-2
Flow	120 m3/day	180 m3/day	240 m3/day
BOD Load	120 kg/day	180 kg/day	240 kg/day

The ISO-V single reactor system has the following nominal capacities at an influent of BOD 3000 ppm and 80% cleaning efficiency in terms of BOD

Model	20 ISO-V	30 ISO-V	40 ISO-V
Flow	100 m3/day	150 m3/day	200 m3/day
BOD Load	300 kg/d	450 kg/day	600 kg/day

Equalisation & Holding System

It is assumed that the customers pipe system ends in customer-provided three chamber combined buffer / pump well / sludge storage tank system prior to our High-Speed Bio Tech plant. The buffer capacity should be sufficient to level out the daily peak flows and hold sufficient water for preservation of the bioculture during weekends. The holding capacity of the system should be at least 24 hours, depending on the weekly flow profile.

Biological Treatment System

The treatment plant takes suction from the pump-well by its own feed pump. The pump is level-controlled and has a capacity of 1-2 times the average daily flow. The plant has therefore an intermittent working mode in terms of hydraulic flow, while the air blower supplying air to the bio reactors is continuously running. The biodegradation reactor comes in one or two stages depending on the required cleaning efficiency. Plants with higher cleaning efficiency than 80-85% need a two-stage system. The bioreactors are degrading the dissolved organic matter by oxidation into carbon dioxide which escapes to the air, and to produced biomass which act as activated sludge. Our proprietary, suspended, free-floating biofilm carrier medium provides a large, protected biofilm surface as host for the bacteria and is simultaneously accumulating the active biosludge inside the carrier elements. Thus the system takes advantage of both the fixed film and the activated sludge biodegradation principle, offering unique volumetric efficiency.

The biodegraded water flows into a clarification stage where the suspended solid settles by gravity. The water is directed through a skim-well to a plate settler system which provides the final clarification of the effluent. For systems with high cleaning efficiency, the sedimentation may be enhanced by the addition of polymers.

The flow animation and process description is as follows:

Animated flow of the EEC Europe High-Speed Bio Tech which is configured to wastewater influent and effluent parameters

Buffer Tank

Wastewater is collected in a buffer tank. This tank acts as balancing reservoir and is used to separate solids, paper and other waste to be received with the waste water.

EEC Bio System

The first and the second chamber of the EEC High-Speed Bio Tec is filled with AMB Bio Media and water. The last chamber, which is a parallel plate settler is filled with water only. Before starting pumping of waste water, the system blower starts. The blowers force air through the manifolds into the first 2 chambers of the bio system. The influent wastewater enters the first chamber and comes in constant contact with the AMB Bio Media and air. Large surface area provided by the AMB Bio Media helps the bacteria to form large colonies on the AMB Bio Media. Circular motion of the media is caused by the air flow. Each element of the media slowly moves in a circular motion from the surface to the bottom and then upwards again. During this movement, it is in constant contact with the injected air. Slowly a bio film develops over each element, which disintegrate the bio mass present in the effluent.

From the first chamber the effluent flows to the second chamber through the perforated partition at the top. The same treatment is repeated in this chamber and the remaining bio mass from the first chamber gets fully digested.. The treated water then enters the third chamber at the top A baffle plate guides the water entering the third chamber downwards. Then it enters the parallel plate settler from the bottom. The settler provides a large surface area for the suspended particles to settle down on its surface and the same are guided towards the bottom. Clean water is let out of the system from the outlet provided at the top of the third chamber.

When the level of the influent drops in the collection tank the feed pump gets tripped. Simultaneously the sludge pump is started. The sludge pump draws sludge from the bottom of the 3 chambers and discharges it into a sludge separation process. This process separates out heavier sediments from the sludge which settle in the collection tube mounted at the bottom of the sludge separation system built into the EEC High-Speed Bio Tec. Clarified water is discharged back in to the first chamber of the bio reactor. The sludge pump operates for a pre-set time and is stopped automatically. The solid sludge accumulated in the sludge collection tube is discharge out periodically. This sludge can be used as a manure or for land farming. Effluent water from system can be used for irrigation.

Benefits

EEC Europe has a competitive edge over competing products as follows:

• Advanced media design with a large total surface area, available on the market today.
• Advanced aeration process which maximises the oxygen transfer efficiency and provide consistency in the process performance.
• All EEC plant can be fitted inside standard ISO containers.
• Unique sludge separation system where old sludge is automatically dumped to a sludge tank and new sludge is returned to pass through the process a second time thereby producing less sludge for tinkering off-site reducing operating costs.
• Very low installation costs, as the plant only requires a level concrete base with electricity supply and the plant can be operational.