Abstract: A purification method for purifying contaminated underground water comprises the steps of characterizing the soil composition at the location of the contaminated water, taking a sample of the contaminated underground water from one or more wells at the location of contaminated water, characterizing the concentrations of contaminants in the collected sample, introducing into the sample a nutrient environment comprising mineral and organic components to effect the growth of sulfate reducing bacteria, accumulating a biomass of selected sulfate reducing bacteria, and introducing the biomass into the contaminated water via one or more wells at the location of the contaminated water.

Abstract: A purification method for purifying contaminated underground water comprises the steps of characterizing the soil composition at the location of the contaminated water, taking a sample of the contaminated underground water from one or more wells at the location of contaminated water, characterizing the concentrations of contaminants in the collected sample, introducing into the sample a nutrient environment comprising mineral and organic components to effect the growth of sulfate reducing bacteria, accumulating a biomass of selected sulfate reducing bacteria, and introducing the biomass into the contaminated water via one or more wells at the location of the contaminated water.

Abstract: A method is provided for obtaining a quality discontinuous surgical suture of biological tissues. The method includes treating the biological tissues with a laser beam having a power flux density of 1-7 kW/cm2, preferably 3-5 kW/cm2, on the surface of the joined biological tissues. To form a discontinuous surgical suture, a laser is used which is powered by copper vapors for generating a laser beam at a wavelength of 0.5-0.6 microns in combination with short-focus optics. The source of laser radiation has a radiation power of 5-15 W, preferably 8-11 W, at a periodic pulse operating mode of laser beam generation and at a focal distance of the focusing objective of 3-7 cm and the exposure period of the biological tissues being treated by the laser radiation is 3-15 seconds.