RESPIROMETRY EMERGES AS AN OPERATION TOOL IN THE WASTEWATER TREATMENT FIELD
The Birth of an Idea The saying, "Necessity is the mother of invention." certainly applied to the invention of the Arthur Respirometer. The need to show wastewater treatment plant operators what is actually happening inside the activated sludge process is what stimulated Bob Arthur to invent and patent (in 1962) the Arthur Large Volume Respirometer. He, in fact, needed to know what was happening within the process biologically so he could do a better job of training plant operators, and getting them to appreciate that they were working with a living, breathing system, not just a mass of solids. He felt that if he could get bioactivity information in a timely manner, this would be a real breakthrough, resulting in better process control.
Arthur had to be involved in training operators, for he was part of the operation service division of a major wastewater treatment equipment manufacturer. It was his job to start up plants nationwide and train the operators in all aspects of equipment operation and maintenance. He also had to teach them bench tests to obtain process control information. He usually started by showing an operator how to perform a settling test with a one-liter graduated cylinder. If he was lucky, he might find that the lab (quite limited in those days) included a hand operated centrifuge (there were no drying ovens and scales) so he could tell the operator about the importance of solids concentration. He might then even introduce the operator to a control strategy - the Sludge Volume Index (SVI).
Physical vs. Biological Tests Performing these physical tests of settling and solids on the mixed liquor just did not make sense to Arthur. Activated sludge is a living, breathing process. "How," he wondered, "is it possible to learn what is happening in a biological process by performing physical tests?" Arthur certainly recognized that physical tests were necessary to determine what was happening in the physical part of the process, i.e.settling, but it bothered him that no tests were performed to see what was happening in the biological part, which is usually 50% or more of the treatment process.
When Arthur started his own engineering firm (Arthur Technology Inc.) to design wastewater treatment plants, he was again involved in operator training, and again was frustrated by the lack of bioactivity information when operating a biological wastewater treatment plant. He decided to do something about this. After several years of work to design an instrument especially for use with activated sludge and by operators, the Arthur Respirometer was introduced in a paper given at the Purdue Industrial Waste Conference in 1964.
Educating the Public in Respirometry Shortly after introducing the instrument, Arthur realized that few people understood how to use a respirometer, or realized the importance of the information it could provide, so he began to develop new respirometer-based operation strategies. This technology was called "respirometry". Aware that the only way to sell a new technology was to demonstrate it, Arthur loaded a van with a respirometer, slide show and other props and toured the USA and Canada for several weeks every year, demonstrating his respirometer and his technology to rooms full of operators, technicians and consultants. The strategies, which all utilized timely, bioactivity information obtained from the respirometer, made a great deal of sense to his audiences. The important thing they learned was that they could use this tool to actually determine what was going on inside the treatment process from start to finish, and that they could detect and avoid small treatment problems before they became major problems. In fact, the most common question from the audience was, "Why hasn't anyone done this before?" The rest is history, as they say. Today, hundreds of plant operators worldwide are using Arthur's operation strategies.
Respirometry Plus, LLC is currently looking for distributors in Asian and Latin American countries. A good knowledge of the activated sludge wastewater treatment process is required.
Can u buy clomid online minocycline for weight loss kamagra in ireland coreg cr pill pictures apotek eu order kamagra online buy valtrex pills online. Buy zovirax cream online kamagra aus deutschland bestellen kamagra günstig kaufen deutschland order viagra online ireland where to buy zovirax cream online. Order viagra online fast shipping pictures coreg pills coreg blood pressure pill clomid online safe buy viagra gold online. Buy clomid fertility pills online taking minocycline weight loss where can u buy clomid online can i buy clomid online in the uk Clomid canada buy. Kamagra northern ireland coreg blue pill buy viagra from usa online valtrex 500 mg blue pill super kamagra ireland coreg color pill does minocycline cause weight loss. Generic for metronidazole topical cream online apotheke schweiz kamagra kamagra generika deutschland kamagra günstig aus deutschland. Buy zovirax cream online canada clomid online aus best place to buy clomid online zovirax ointment buy online kamagra günstig in deutschland kaufen. Kamagra ireland shop coreg pill identifier generic pill for valtrex online clomid order can i buy zovirax online. Buy viagra gel online clomid online pharmacy australia where do i buy clomid online can u buy clomid online where did you buy your clomid online. Kamagra oral jelly günstig kaufen deutschland minocycline weight loss coreg picture of pill buy valtrex pills coreg pill sizes can you get clomid online. Can minocycline cause weight loss blue pill valtrex 1 gram coreg heart pill order viagra online free shipping. Coreg blood pressure pills pictures of coreg pills where can i buy zovirax online coreg pill valtrex pill dosage.
Can u order clomid online buy suprax 400 mg online phenergan with dextromethorphan cost buy cialis prescription online. Clomid online pharmacy uk can i get a cialis prescription online cheap cialis with prescription how much does phenergan cost without insurance buy generic suprax online. should you buy clomid online clomid order online uk cialis prescription price australia online cialis prescription Clomid 50mg $203.48 - $0.75 Per pill. Buy suprax online uk can clomid be purchased over the counter online rezept clomid procardia generic nifedipine phenergan gel cost clomid online cheap. Generic form of procardia phenergan with codeine syrup cost procardia nombre generico buy cialis non prescription Buy propranolol 10 mg. Coupon for cialis prescription is nifedipine generic for procardia propranolol over the counter usa generic cialis without a doctor prescription. Generic drug for procardia xl discount cialis with prescription generic procardia xl online purchase of clomid cheapest cialis with prescription. Where to get cialis prescription proscar ohne rezept kaufen procardia generic available buy propranolol online usa clomid rezeptfrei online bestellen. Generic of procardia xl cost of phenergan in uk clomid for purchase generic for procardia xl propranolol price usa clomid 50 mg purchase. Clomid where to purchase where to buy non prescription cialis proscar kaufen rezeptfrei clomid online pharmacy. Clomid online europe procardia xl vs generic order cheap clomid online order clomid online australia procardia xl generic name generic for procardia. Cialis from canada with a prescription online clomid order phenergan codeine cost generic of procardia generic cialis online prescription. How much does a prescription of phenergan cost can i purchase clomid online clomid purchase uk order generic clomid online cheap non prescription cialis. Is procardia generic where to get prescription for cialis order clomid 100mg online procardia generic cialis with prescription online clomid online australia. Generic name for procardia xl phenergan prescription cost generic cialis prescription phenergan 25 mg cost clomid online fast delivery.
Clomid in Colorado springs
Clomid in Chula vista
Clomid in North vancouver
Clomid in N.j.
Effexor xr 37.5 mg price buy arimidex south africa buy clomid pct online uk levlen ed tablets 150 30mcg buy arimidex online cheap buy liquid arimidex australia. Clomid after weight loss arimidex buy online australia effexor xr 37.5mg reviews where can i buy viagra over the counter in sydney. Buy viagra in australia online buy generic arimidex online arimidex anastrozole buy taking clomid after weight loss cheap clomid for sale. Buy arimidex (anastrozole) pcos clomid weight loss weight loss before clomid sildenafil online schweiz buy arimidex europe. Sildenafil sandoz online bestellen clomid online sale buy arimidex .25mg levlen tablets 28's sildenafil citrate online australia. Weight loss on clomid clomid pct for sale australia where to buy viagra over the counter australia levlen ed tablets 4 x 28. Sildenafil pills online buy arimidex tablets sildenafil online doctor comprar clomid online españa buy arimidex research chemicals sildenafil actavis online. Buy arimidex anti estrogen clomid for sale pct buy arimidex online Clomid 100mg $43.78 - $1.46 Per pill. Buy arimidex bodybuilding where can i buy viagra over the counter in australia arimidex buy buy arimidex online usa arimidex to buy uk buy arimidex nz where can i buy arimidex in the uk. Arimidex buy australia sildenafil online apotheke effexor xr 37.5 mg menopause buy sildenafil online australia buy arimidex cheap. Buy cheap generic arimidex buy arimidex online australia buy arimidex liquid arimidex steroid buy arimidex liquidex buy does clomid help weight loss.