Globally, the water industry has to deal with contamination from both manmade and natural sources; for the provision of safe water resources. The Bubble Column Evaporator (BCE) offers a simple method for mass and thermal energy transfer and also has a variety of applications, specifically in water treatment. This work focuses on the development of novel applications of the BCE in: Controlled aqueous precipitation: Strontium sulfate scale deposits have long plagued oil and gas production. Mixtures of strontium nitrate and sodium sulfate in the BCE system were used to precipitate at different degrees of supersaturation. Production of nanoparticles is of interest to many industries and can be obtained by precipitation, electrolysis and so on. The precipitation of several amino acids at their solubility limits and isoelectric points was also studied. The effectiveness of the BCE system was compared to a standard stirring system. The results from solutions of SrSO4 and amino acids show that the BCE system has a significant inhibition effect, hence it can be used as a novel method to control precipitation growth rate and to produce fine particles. Mechanism of bubble coalescence inhibition: No theory has been able to explain the range of interactions involved in bubble coalescence inhibition observed for bubble surfaces in different electrolyte solutions, and many mechanisms almost certainly depend on the particular situation. All theoretical attempts to explain the phenomenon have failed. Many salts reduce the size of bubbles and inhibit bubble coalescence, but some do not. The present work extends the effect to a wider range of solutes. Amino acids were found to inhibit bubble coalescence and reduce the size of bubbles. The effect is the same as that for some inorganic salts but for some amino acids, it is significantly more efficient. Removing water contaminants using adsorbents nucleated in the BCE: Current techniques that are frequently used for the removal of heavy-metal ions were discussed and the use of environmentally acceptable surfactants, based on amino acids (N-octanoyl-cys and N-octanoyl-tyr), were proposed. The adsorbents efficiency such as calcium fluoride, aluminium fluoride and calcium ferric layered double hydroxide were measured based on their particle growth in the BCE and their PFAS removal rates using solid phase extraction (SPE) and liquid chromatography/mass spectrometry (USEPA 537). Further research is required to develop biodegradable surfactants or additives which can replace commercial surfactants, often used in commercial ion and froth flotation processes.