EKOL 15: wastewater treatment plant for 100 people

The high-quality wastewater treatment plant for 100 people is ideal for large buildings and places without a connection to the sewage system. With our reliable plant you get safe and efficient wastewater treatment with respect for the environment.

Our EKOL 15 wastewater treatment plant for 100 people provides an excellent solution for large buildings and for places without a connection to the sewerage system. In view of the ever-increasing demands for clean water, we offer high-capacity and efficient wastewater treatment. Rely on our EKOL purifiers and get clean water with respect for the environment.

At Morava Ekol, we manufacture several variants of wastewater treatment plants that make it easy to cover any kind of load. You can choose the EKOL 1, EKOL 2.5 or EKOL 4 for smaller facilities, the EKOL 6 and EKOL 9 for medium-sized facilities, and the EKOL 12 for large facilities in addition to the EKOL 15.

Description and functions of the EKOL 15 wastewater treatment plant

The EKOL 15 consists of a tank made of wall elements and polypropylene plates, closed with a split removable lid. The lid contains ventilation and clearing holes for sludge removal and is non-penetrating.

The tank is divided into a primary sedimentation area - settling area (A), a storage area (E), a biological treatment area (C) with a rotating biocontactor (B) and a settling area (D). The biological contactor consists of a cage filled with small plastic elements. The rotation of the rotor is provided by a drive unit consisting of a sliding gear box, a V-belt transmission, an electric motor with a distributor.

Functional diagram of the EKOL 15 sewage treatment plant

How the EKOL 15 wastewater treatment plant works

The treatment is integrated in one packaged unit, where there is both a mechanical treatment section (A,D,E) and a biological treatment section (B,C). Mechanical treatment is carried out in a two-chamber settling tank (A) by simple sedimentation. A part of this area near the bottom is reserved for anaerobic sludge stabilisation, thickening and storage (E). Pre-treated water flows into the biological treatment area (C) where the progressive TF/SC method, first introduced in the USA 15 years ago, is used.

This treatment method uses the activity of sessile and buoyant organisms. The composition of these micro-organisms is so different that they are complementary in their effects. This results in a balanced treatment effect, and at the same time a higher resistance to hydraulic and metabolic shocks compared to conventional wastewater treatment methods.

The activated mixture from the biozone (C) flows through a degassing chute into a vertical settling tank (D), which is connected to the biozone area (C) at the bottom. This ensures continuous dewatering of the settling tank (D) and the excess activated sludge is pumped back to the settling tank (A) by means of a wheel located on the periphery of the biorotor, where it is mixed with the freshly flowing polluted water.

In the settling and storage tank (A,E), the activated sludge flakes and the sludge water are separated and flow back together with the inflow to the biozone. In this way, communication between the biozone (C), the settling tank - septic tank (A) and the settling tank (D) is ensured. The clean water outlet trough from the settling tank (D) is equipped with adjustable brick walls to prevent floating suspended solids from the surface of the settling tank from escaping into the outlet.

Drawing of the sewage treatment plant
Section of the sewage treatment plant

How to maintain the EKOL 15 sewage treatment plant

Themaintenance-free EKOL series ofwastewater treatment plants are designed so that they do not require daily servicing. The functionality of the wastewater treatment plant will be maintained as long as the power supply is not interrupted. The treatment plant only requires the stored sludge to be pumped out once a year and the bearings to be lubricated twice a year.

Where the EKOL 15 is used

EKOL plastic mechanical-biological wastewater treatment plants are effectively used to treat wastewater of a sewage nature, especially from residential complexes, recreational facilities, hotels, campsites, social facilities, farms and factories. It is a great solution for up to 100 equivalent persons. In addition, the EKOL 15 can be used to treat wastewater from dairy cowsheds for approximately 100-200 dairy cows.

The initial basis for the design and installation of the WWTP are the requirements of the water authorities for the quality of water in the respective watercourse into which the treated wastewater is discharged, the requirements of investors and the planning authorities.

Technical data of the EKOL 15 wastewater treatment plant

  Unit EKOL 15
Equivalent. Residents EO 100
Daily water flow


Daily BOD5 contribution kg/day 6,5
Water depth mm 2 000
Total usable volume m3 23,4
Volume of settling (sludge) space m3 14,8
Volume of active space m3 5,2
Volume of existing space m3 4,2
Area of dosaz. of the tank m2 2,6
RBC rotor area m2 398
Rotor speed RPM 5,2
Engine power W/400 V 250
Total weight kg 2 200
Technical data    
Length mm 6 000
Width mm 2 160
Tank height mm 2 500
Total height mm 2 900
Inlet height mm 2 130
Outlet height mm 1 880