Articles

Greywater and rainwater recovery in buildings

The greywater and rainwater recovery concept has recently gained large significance. The greywater and rainwater recovery systems become indispensable even in Europe where the pressure on the water recovery has not been so strong so far. However, the situation has dynamically changed and some countries in the Southern Europe have already started to suffer from lack of water and seek the new water resources. The used water recovery systems become popular also due to the fact that they are less expensive compared to desalination systems. The administration buildings and hotels have often been designed including the greywater and rainwater recovery systems. These recovery systems are mandatory in the low-energy buildings. In the Czech Republic, the issue is dealt with and the technical documentation is elaborated within the Greywater and Rainwater Recovery in Buildings project, integrated in the ALFA scheme of the Czech Republic Technology Agency no. TA01020311. ASIO, spol. s.r.o. and the Brno University of Technology participate in the project.

Waste Water Treatment Plant Refurbishment in Radomyšl

The opening ceremony of the Waste Water Treatment Plant (WWTP) trial run attracted more than one hundred Radomyšl residents. Luboš Peterka, the Mayor of the village, welcomed all participants, the honoured guests had a short speech and all uninitiated persons got acquainted with the WWTP features and components.

Reducing Development of Cyanobacteria in Water Reservoirs

The ASIO Company has recently dealt intensely with the issue of pollution of surface waters and reducing of cyanobacteria development in water reservoirs.

ASIO and a look back at 2012 – our top ten – a little bit of everything

It’s normal to subconsciously look back at the end of the year, just as we look back when standing at the top of a hill or returning from holiday. It’s no different when it comes to a business company and it may even be useful to remember what each of us considers the most significant events at the company over the past year... (I just took the liberty of shortening the list a bit).

Clean Leachate - COMBINED ANODE AND CATHODE PROCESS TO TREAT LANDFILL LEACHATE

This project will lead to the development of an automated, modular, mobile leachate treatment system. The treatment will be carried out directly in an advanced oxidation process that uses reactions at both the anode and the cathode of a new form of electrolytic cell that we are developing. Whilst current treat¬ment methods can be expensive to install and maintain, may involve the use of chemicals and require permanent positioning at the landfill site, our apparatus will allow new treatment strategies to be used by the landfill operators.

Technologies for phosphorus recycling from water environment

Today, phosphorus is mostly obtained from mined rock phosphate and existing rock phosphate reserves could be exhausted in next 50 – 100 years (Cordell et al., 2009). Phosphate minerals are the main hosts of phosphorus during its environmental transformations. Whether in phosphate ores, rocks or soils, they act as the primary source of phosphorus.

Retention of rainwater in structures of plastic blocks

The study of the Sheffield University (UK) has clearly proved that the configuration of AS-NIDAPLAST blocks with a bottom drain is more reliable and safer than tank configurations with blocks with direct inflow. At the same time it has shown that in tanks with a bottom drain there is only a minimum risk of silting with fine sediments and almost a zero risk of blocking the tank with large waste items of the plastic bag type.