Sustainable Development

The world’s growing population places new demands on the supply of clean water as well as on treatment measures.

Today most people reside in urban areas and the requirements for wastewater treatment are rapidly increasing.

The uncontrolled growth in urban areas has made planning and expansion of water and sewage systems very difficult and expensive to carry out.

In wastewater treatment plants, combinations of physical, biological and chemical methods are used to purify the water.

The biological treatment step reduces nitrogen, phosphorous, bioavailable carbon and other organic contaminants with the aid of microorganisms (Gillberg et al., 2003).

The most common and well-known biological wastewater treatment process is the activated sludge process (Jonstrup et al., 2010).

Basically, the activated sludge process is based on an aerated tank, in which organic matter is degraded by suspended microorganisms (Jonstrup et al., 2010). The sludge is then separated in a clarifier and excessive sludge is removed from the process (Jonstrup et al., 2010).

In order to retain the bacterial fauna in the process, some of the separated sludge is recycled to the aerated tank (Jonstrup et al., 2010).

The problem with the current treatment technologies is they lack sustainability.

Although still less common than activated sludge processes, the Moving Bed Biofilm Reactor (MBBR) is becoming increasingly popular. By 2000, some 100 wastewater treatment processes around the world utilized the MBBR concept (Ødegaard et al., 2000). To date, more than 500 MBBR processes based on the use of carrier elements are found in more than 50 countries (AnoxKaldnes, 2009). In difference from in activated sludge systems, the biomass in MBBR processes is retained.

Turbo4bio a step ahead as a low cost sustainable solution

The T4b effluent treatment plant is an advanced, high intensity, sludge aeration system. The ecological engineered plant is totally enclosed, robust and is essentially non-mechanical in operation, ensuring a virtually odor-free, environmentally friendly, long-life solution for the treatment of domestic, commercial and municipal sewage and, where appropriate, organic industrial waters.

The T4b innovative water purification technology results in lowest investment and operational costs while reducing the plant’s footprint.

The improved biomass settle speed allows the process to operate at highest mixed liquor concentrations, comparable to that of MBR and 4-5x that of conventional processes.

Minimal sludge yields and ease of maintenance. Flexible and applicable at any scale, very small (decentralized) and very big as well. With effluent quality fit for agricultural or landscaping re-use. Making the T4b approach altogether a true sustainable solution.

Photo courtesy U.S. Geological Survey. USGS produces educational posters illustrating many aspects of wastewater treatment.