Critical point analysis and biocide treatment in a microbiologically contaminated water purification system of a power plant

Many industries use ultrapure water (UPW) for their operation. In spite of purification efforts, microbial contaminations are the major cause of manufacturing problems in these systems. In our experiments, the water purification system of a power plant was investigated: the microbiologically critical points of the ultrapure water purification system were located by checking the number and diversity of bacteria to determine the optimum operational unit for chemical intervention: the most contaminated site was the mixed-bed ion-exchange resin containing unit. Biocides were tested against bacteria previously isolated from the same system; effect of biocides was checked also in laboratory model systems, and based on the results, a biocide treatment was carried out in the mixed-bed ion-exchange resin columns of the working power plant. Kathon WT was the most effective from the studied chemicals, being effective already in low concentration against most studied microorganisms. In case of the handling of the mixed-bed ion-exchange resin, 8-h treatment with 25ppm biocide concentration was effective. Following the treatment, the quality of the produced UPW met the standards (specific electric conductivity was<1.0x10(-3)mu Scm(-1) at 25 degrees C) and water production capacity increased; moreover, the run-down time of the mixed-bed ion-exchange resin significantly grew

Must a Claim to Be "America's Favorite" Be Verifiable?

A recent case out of the Eight Circuit Court of Appeals contains an excellent discussion af advertising claims that require substantation and those that do not. In American Italian Pasta Company v New World Pasta Company, the court ruled that the phrase "America's Favorite Pasta" is so-called puffery that does not violate the Lanham Act. According to the court, for a factual claim that is false to violate the Lanham Act, it must be a "specific and measurable claim capable of being proved false or being reasonably interpreted as a statement of fact." Not everything that is unethical is illegal and, while some may question the ethics of an advertiser making an "America's Favorite" claim without any supporting evidence, the Eight Circuit showed proper restraint instopping short of making it unlawful

Purported Rigidity of an Attorney\u27s Personality: Can Legal Ethics Be Acquired?

The purpose of this article is to critique the idea that lawyers have certain inherent unchangeable characteristics. We argue that, based on psychological literature, personality is constructed; it is built by the social arrangements that create the legal system and the profession. From this vantage point, lawyers\u27 behavior is not infinitely malleable, but is certainly capable of self-conscious improvement

Dynamic business law : summarized cases

xli, 1285 p. ; 26 cm

Dynamic business law: summarized cases

xii,1088 hlm.;ILus,: 24c