Wastewater from a local hospital were being treated in a general wastewater treatment plant (WWTP) of City A in South Africa. For this approach, testing for presence/absence of coliforms was regarded as sufficient for microbial quality of water. As a water treatment expert, please clearly highlight the potential limitation of the treatment approach that only focuses on elimination of coliforms

Wastewater from a local hospital were being treated in a general wastewater treatment plant (WWTP) of City A in South Africa. For this approach, testing for presence/absence of coliforms was regarded as sufficient for microbial quality of water. As a water treatment expert, please clearly highlight the potential limitation of the treatment approach that only focuses on elimination of coliforms

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter19: Equipment Processing And Surveillance

Section: Chapter Questions

Problem 5SEPT

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As a water treatment expert, please clearly highlight the potential limitation of the treatment approach that only focuses on elimination of coliforms.
Coliforms are commonly used as an indicator of drinking water quality. As we discussed, in March and April of 1993 there was a major outbreak of gastrointestinal illness in Milwaukee, Wisconsin caused by contamination in the public drinking water supply. As summarized by MacKenzie et al.1, “throughout the period from February to April 1993, samples of treated water from both (water treatment) plants were negative for coliforms and were within the limits set by the Wisconsin Department of Natural Resources for water quality.” Why, in this case, did coliforms remain at acceptable levels despite water contamination that resulted in over 400,000 cases of gastrointestinal illness?
Every year, supposedly safe municipal water supplies cause outbreaks of enteric illness.Using the Wisconsin outbreak example from the 1990s, explain how pathogens can slip through water analysis and treatment processes undetected and untreated.
Which of the following treatments of sewage involves the use of anaerobic bacteria?A. Primary sedimentation tanksB. Aeration tanks in secondary treatmentC. Settling tanks in secondary treatmentD. Flat plate collectorE. Sludge digester
Why does secondary treatment of wastewater require O2? A. Secondary treatment relies on anaerobic microbes to oxidize organic material. B.Secondary treatment relies on anaerobic microbes to reduce organic material. C.Secondary treatment relies on aerobic microbes to oxidize organic material. D.Photosynthetic bacteria are involved in secondary treatment and they require O2. E. Flocs require oxygen to facilitate biofilm formation.
The activated sludge process was developed from empirical knowledge and is now widely used for wastewater treatment. From a microbial point of view, i. Discuss how the ecology of different sectors of the process can be defined. ii. Design an experiment to understand how an efficient process differs from one with problems, such as sludge bulking.
In fixed-bed leaching, how it can be leached please mention one or two only.
Microorganism growth in complex natural environments such as soils and waters can be utilized to carry out environmental management processes. Give one term for the process you would use to cleanse a marine oil spill and discuss at least 3 types thereof. Outline factors that would facilitate the success of the process you mentioned on 1. Discuss the use of indicator organisms in testing the quality of drinking water.
Which of the media types would predict is used to detect possible fecal contamination of water in the Puget Sound by identifying coliforms like Escherichia coli?
Another method of microbial control is filtration. List down at least 5 kinds of filters which could be used for this method?
Why do meat packaging plants have to process/pretreat their wastewater before sending it into the public treatment system
Given its merits, why has advanced wastewatertreatment not been widely adopted?