Water purification

In the last years, boron and arsenic are gaining wide attention in the water treatment community due to their adverse effects both on human/animal health and on agriculture. As a consequence, nowadays, the number of water treatment plants equipped with boron and arsenic removal facilities is growing

A proposal for rational energy saving using wasted heat is showed in the present paper. Thermodynamicmathematical model is presented like an effort for water purification from waste heat. This paper describes computing results of heat transformer operation for water purification using low grade wast

A predictive model for a water purification process integrated in an absorption heat transformer, using an artificial neural network, is proposed in order to obtain on-line predictions of the coefficient of performance (COP). This model takes into account the input and output temperatures for each o

Presence of phenol in river water occasionally disturbs the production of drinking water. Phenol often originated from coal power plants or pesticides. New ozone generator [Kuraica et al., Vacuum, 73 (2004) 705] was used for removal of phenol and chlorophenols from water. The ozone generator was bas

Pillared bentonite, a clean and cost-effective adsorbent with high specific areas of 111.3 m2/g and high basal spacing of 1.98 nm, was prepared for the removal of humic acid from water. It is effective for the removal of humic acid with a high adsorption capacity of 537 mg/g, and adsorption is favor

The potential of the fluid mixture water–(LiBr+LiI+LiNO3+LiCl) is studied by numerical simulation for purification of seawater using single-stage absorption heat transformer. The multi-component salt mixture shows a considerably higher solubility than that of the conventional working fluid water–LiB

The tap water is often used as water source for different industries, however, the water repurification is required to meet the specification of technology. The effect of application of ultrafiltration (UF), nanofiltration (NF), reverse osmosis (RO) and membrane distillation (MD) processes on the qu

A conventional solar still produces 6 litres of fresh water per square metre per day of collector surface. With heat recovery and air mass circulation we can reach up to 20 litres m3/d. The quality of the processed water is always very high so that the investment costs are justified. This depends on