The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: Sludge Digestion & Solids Handling: Which one of the following species is ozone? The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. STUDY STRATEGY 10-13 . Which one of the following is the best type of valve to use to dampen a water hammer? Sludge Digestion & Solids Handling: Chlorine disinfects water much slower at a pH around 7.0 than at a pH over 8.0. Sludge Digestion & Solids Handling: What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? High suspended solids and BOD are most probably associated with which type of organisms? When the pump is not running, the water rises in 3 min. (3) reddish brown, Activated Sludge: Student Resources. 50 terms. I just challenged the Water Treatment level 1 exam this Monday and noticed there were questions regarding distribution on it as well. The wastewater operator certification program is a mandatory program. c. 6 stages If the sludge drying beds had a decaying odor, what would be the most likely solution? . WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. b. COD udDNW|'Z[V2Lj$h>-}ToIYPcXpj$c[1s;Hu'wg>{h<3B~l8io\M,J1?euZ1!j@Pk*DZWGBiNw+EE'jY?Qz\Vvr}W[Z RkGnW\Vq:G\n^6qAaVWn,v 9V;-zlpEp"Kp Most algae are in the____kingdom, Activated Sludge: 0000002075 00000 n c. once per day WasteWater Operator Certification, Grade 2, Wastewater Treatment Facilities: Wastewater Solids Processing: Good luck. A solids treatment dewatering process method would be" f.FeathrBoomerang=r;var g=e.createElement(a), d. organic toxicants, Activated Sludge: Which property uniquely identifies a chemical element? ._2FKpII1jz0h6xCAw1kQAvS{background-color:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.1),0 2px 3px 0 rgba(0,0,0,.2);transition:left .15s linear;border-radius:57%;width:57%}._2FKpII1jz0h6xCAw1kQAvS:after{content:"";padding-top:100%;display:block}._2e2g485kpErHhJQUiyvvC2{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;-ms-flex-pack:start;justify-content:flex-start;background-color:var(--newCommunityTheme-navIconFaded10);border:2px solid transparent;border-radius:100px;cursor:pointer;position:relative;width:35px;transition:border-color .15s linear,background-color .15s linear}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D{background-color:var(--newRedditTheme-navIconFaded10)}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D._1L5kUnhRYhUJ4TkMbOTKkI{background-color:var(--newRedditTheme-active)}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D._1L5kUnhRYhUJ4TkMbOTKkI._3clF3xRMqSWmoBQpXv8U5z{background-color:var(--newRedditTheme-buttonAlpha10)}._2e2g485kpErHhJQUiyvvC2._1asGWL2_XadHoBuUlNArOq{border-width:2.25px;height:24px;width:37.5px}._2e2g485kpErHhJQUiyvvC2._1asGWL2_XadHoBuUlNArOq ._2FKpII1jz0h6xCAw1kQAvS{height:19.5px;width:19.5px}._2e2g485kpErHhJQUiyvvC2._1hku5xiXsbqzLmszstPyR3{border-width:3px;height:32px;width:50px}._2e2g485kpErHhJQUiyvvC2._1hku5xiXsbqzLmszstPyR3 ._2FKpII1jz0h6xCAw1kQAvS{height:26px;width:26px}._2e2g485kpErHhJQUiyvvC2._10hZCcuqkss2sf5UbBMCSD{border-width:3.75px;height:40px;width:62.5px}._2e2g485kpErHhJQUiyvvC2._10hZCcuqkss2sf5UbBMCSD ._2FKpII1jz0h6xCAw1kQAvS{height:32.5px;width:32.5px}._2e2g485kpErHhJQUiyvvC2._1fCdbQCDv6tiX242k80-LO{border-width:4.5px;height:48px;width:75px}._2e2g485kpErHhJQUiyvvC2._1fCdbQCDv6tiX242k80-LO ._2FKpII1jz0h6xCAw1kQAvS{height:39px;width:39px}._2e2g485kpErHhJQUiyvvC2._2Jp5Pv4tgpAsTcnUzTsXgO{border-width:5.25px;height:56px;width:87.5px}._2e2g485kpErHhJQUiyvvC2._2Jp5Pv4tgpAsTcnUzTsXgO ._2FKpII1jz0h6xCAw1kQAvS{height:45.5px;width:45.5px}._2e2g485kpErHhJQUiyvvC2._1L5kUnhRYhUJ4TkMbOTKkI{-ms-flex-pack:end;justify-content:flex-end;background-color:var(--newCommunityTheme-active)}._2e2g485kpErHhJQUiyvvC2._3clF3xRMqSWmoBQpXv8U5z{cursor:default}._2e2g485kpErHhJQUiyvvC2._3clF3xRMqSWmoBQpXv8U5z ._2FKpII1jz0h6xCAw1kQAvS{box-shadow:none}._2e2g485kpErHhJQUiyvvC2._1L5kUnhRYhUJ4TkMbOTKkI._3clF3xRMqSWmoBQpXv8U5z{background-color:var(--newCommunityTheme-buttonAlpha10)} b. are more fibrous Sludge Digestion & Solids Handling: ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} d. positive displacement. Wastewater Grade 2 t/f. Safety: What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? Sorry, your blog cannot share posts by email. A solids treatment thickening process method would be a. step aeration Always pour the acid into the water. 0000001026 00000 n << b. nitrogen c. BOD Sedimentation and Flotation: What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? Making water clean. Humus sludge is biomass from, Trickling Filters: Typically, in the flotation thickening method, how much performance improvement (%) is the amount of solids for waste activated sludge realized when a polymer is added? Create an account to follow your favorite communities and start taking part in conversations. The current imbalance between legs of polyphase motors should never exceed____%, Maintenance: What is the solids treatment method that uses a chemicals and mixes the recycled flow with the process residual flow in a reactor? All occupied trenches 4 or more feet deep must provide exits at. c)Replenish chemical stock. Activated Sludge Module 4 . This stage takes care of the dissolved organic matter that escapes the primary stage. Sludge Digestion & Solids Handling: What should the initial depth of sludge from a digester be when it is placed in a sludge drying bed? a. The effluent from which process is called mixed liquor d. phosphorous, Activated Sludge: d. fats. Was it a 3 in collections or treatment? feathr("sprinkle", "page_view"); What is the ultimate measure of effective chlorination? Wastewater Solids Processing: ABC's website provides Need to Know Criteria for exams. Math for Wastewater Treatment Operators Grades 3 amp 4 March 13th, 2009 - Math for Wastewater Treatment Operators Grades 3 amp 4 Practice Problems to Prepare for Wastewater Treatment Operator Certification Exams 1st Edition Catalog Roane State Community College April 30th, 2018 - Note The terms in which a course is normally ._3oeM4kc-2-4z-A0RTQLg0I{display:-ms-flexbox;display:flex;-ms-flex-pack:justify;justify-content:space-between} Study materials to help you succeed. Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? no one is perfect and as long as you make progress, i'd be happy with the effort. d. activated sludge. The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. a. heavy metals Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. c. flammable oils Click the card to flip Definition 1 / 88 Look for a manhole with reduced or no flow when the manhole upstream is flowing full Click the card to flip Flashcards Learn Match Created by cshe1736 Terms in this set (88) What do roller guides provide in an anaerobic digester? The RX Drug Company has just purchased a capsulating machine for $76,000. What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: Enhanced Biological (Nutrient) Control: Final DO: 5.9. d. mixing, Sludge Digestion & Solids Handling: How far out from the water's edge should waste pond samples be collected? THESE ARE NOT DUPLICATE QUESTIONS FROM ANY STATE EXAM. >> 0000000700 00000 n c. add treatment chemicals We'll bring you back here when you are done. Maintenance: + The least desirable control method for an anaerobic digester is the use of digester____ These practice tests are a great study tool to add to your Water Distribution Operator Exam studying process. Sludge Digestion & Solids Handling: c. rotating feeder Safety: d. hydrochloric acid. ._12xlue8dQ1odPw1J81FIGQ{display:inline-block;vertical-align:middle} Find out how you can intelligently organize your Flashcards. 2,323 Gal./Min. Introducing Cram Folders! when one liquid is dissolved in another liquid it is called. Tightened down to a drip. a)Clean settling basins and dispose of sludge. I included the answers at the bottom of this page. d. plunger feeder, Solids removal from secondary effluent: The detention time for primary clarifiers usually has a range of_____hr/s, Wastewater Treatment Facilities: Filter sloughings are a product of: Sedimentation and Flotation: MATERIAL AND METHODS How often should flame arresters be service on anaerobic digesters? .FIYolDqalszTnjjNfThfT{max-width:256px;white-space:normal;text-align:center} Sewer "B" has 94,875 people at b. decrease circulation Which one of the following types of substance is not soluble in water and has the potential of creating explosive conditions? ISAWWA offers a full range of online classes, all approved by the IEPA with RTC hours. a. pH Maintenance: The last stage is the treatment of RMW. Which type of feeder would most likely feed clear solutions? a. oils and greases Odor Control: 58 0 obj << /Linearized 1 /O 60 /H [ 700 326 ] /L 100420 /E 48024 /N 15 /T 99142 >> endobj xref 58 13 0000000016 00000 n What is the most accurate measure of the organisms present in an aerator for treating incoming wastes? se&{1k">N0{5yur-;5Y5#[ !q& kH'U!p_,JjrDGM&tv.~Qsn,3u}L> b)>c^\!rA[6GOE;5N8&6\ciu2k .ehsOqYO6dxn_Pf9Dzwu37{margin-top:0;overflow:visible}._2pFdCpgBihIaYh9DSMWBIu{height:24px}._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu{border-radius:2px}._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu:focus,._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu:hover{background-color:var(--newRedditTheme-navIconFaded10);outline:none}._38GxRFSqSC-Z2VLi5Xzkjy{color:var(--newCommunityTheme-actionIcon)}._2DO72U0b_6CUw3msKGrnnT{border-top:none;color:var(--newCommunityTheme-metaText);cursor:pointer;padding:8px 16px 8px 8px;text-transform:none}._2DO72U0b_6CUw3msKGrnnT:hover{background-color:#0079d3;border:none;color:var(--newCommunityTheme-body);fill:var(--newCommunityTheme-body)} Sludge Digestion & Solids Handling: Water Treatment Certification practice tests, flashcards, study guides, and more. Another solids treatment thickening process would be: b. gravity Low-temperature water can be compensated for when using alum by______, Basic Chemistry: True. Rotating biological contactors have all the following advantages except: me personally the Sacramento is way outdated, But I used the wastewater treatment fundamentals I&II textbook and passed my Class IV in Virginia on the first try. Pools with crystal clear water look inviti Use LEFT and RIGHT arrow keys to navigate between flashcards; Use UP and DOWN arrow keys to flip the card; audio not yet available for this language. a. increase air in aeration system 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: d. once every other day, Sludge Digestion & Solids Handling:

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