A Study On The Characterization Method Of Apparent Pollution For Scenic Water

So-called established apparent pollution, water is some of the characteristics of water caused by people's senses dirty water phenomena, such as dark stinking, water bloom, etc. People has a lot of subjective senses expression for the water, even for the same kind of water senses status, different people have different description; And for one or several different senses, take one small part of water samples, its color observed sensory condition may become shallow, and water body sensory differs very big. Therefore, seeking a set of scientific water apparent pollution to the characterization method, polluted water apparent correctly objective evaluation, the judge not to man's subjective factors for transfer; Also can change status of water senses scientific records.This study of the existing water first apparent pollution the extreme - black smelly judge method makes a system reliability studies, then to water absorption spectrum curve and curve and water relation of comprehensive senses, some conclusions:(1)Through the black smelly index formula experiment showed that black smelly index of the same senses formula of river of black-odors index discriminent is different with different results; the discriminant Each kind of discriminent black-odors to water bodies senses the judgement of the results and water in actual senses were bigger, unreliable. Establish a rational and scientific, universally applicable water apparent pollution characterization method is extremely essential.(2)Through the water absorption spectrum curve, the experimental research shows that different apparent traits absorption spectrum curve although same, but general trends, average absorbance of the biggest curve spectrophotometry, appear maximum absorbency premises wavelengths, starting point and the curve tends to gently the horizontal distance between points, curve gently place relative x axis vertical distance are not the same. The black, yellow, green 3 kinds of common color of water in visible range (400nm - 760nm) the absorption spectra curve observation within the three knowable, large difference color the absorption spectra curve shape are not the same, all have their own characteristics, but the same color water absorption spectrum curve similar. Can use the visible absorption spectral curve distinguish within the scope of these 3 kinds of color senses water.(3) Different senses water absorption spectrum curve and sensory good clean water, water (good sense water) absorption after the interval after spectral subtraction of linearly with water and turbidity and gradually become apparent worse, the comprehensive apparent levels can be water by curve interval area and turbidity get distinction; The comprehensive apparent level in different water its full spectrum scan absorbency minus the corresponding suction filter water scan absorbency interval area characterization is more reasonable comprehensive apparent water.