2017 Wastewater Treatment Operator Formula/Conversion Table c)Replenish chemical stock. . Sludge Digestion & Solids Handling: What class of fire involves sodium and magnesium? 78 terms. !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? (2) reddish brown To see these classes - CLICK HERE. Making water clean. %PDF-1.4 % These practice questions and answers are brought to you free of charge by RoyCEU.com. Sludge Digestion & Solids Handling: Enhanced Biological (Nutrient) Control: c. acids and alkalies Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. Milliliters of sample used: 2. I included the answers at the bottom of this page. c. tapered aeration temperature favoring the growth of a particular species of algae. se&{1k">N0{5yur-;5Y5#[ !q& kH'U!p_,JjrDGM&tv.~Qsn,3u}L> b)>c^\!rA[6GOE;5N8&6\ciu2k What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? b)Determine that all the plant equipment is operational. 100:5:1 b. a. screw feeder f. white, Odor Control: Secondary Treatment: c. composting d. plunger feeder, Solids removal from secondary effluent: b. cyanide d. about the same volume as the grit being removed. What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: DO Water Treatment Certification practice tests, flashcards, study guides, and more. Water and Wastewater Courses For Operator Certification. Wastewater Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. You must sign in or sign up to start the quiz. Wastewater Solids Processing: WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. b. filter presses Introducing Cram Folders! -pH is 7.2. When the pump is not running, the water rises in 3 min. h=e.getElementsByTagName("head")[0]||e.getElementsByTagName("script")[0].parentNode; Practice Tests. >> feathr("fly", "5e558ae66f594e4be753166e"); a. O2 (+3) Find out how you can intelligently organize your Flashcards. -all blowers are running. c. grit These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. What is the critical factor in any method to control the aeration tank? Is the following substances likely to serve as an oxidant or a reductant: A scuba diver wears a diving mask with a face plate that bulges outward with a radius of curvature of 0.5m0.5 \mathrm{~m}0.5m. There is thus a convex spherical surface between the water and the air in the mask. Outline c. F/M ration a. BOD ._1sDtEhccxFpHDn2RUhxmSq{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:18px;display:-ms-flexbox;display:flex;-ms-flex-flow:row nowrap;flex-flow:row nowrap}._1d4NeAxWOiy0JPz7aXRI64{color:var(--newCommunityTheme-metaText)}.icon._3tMM22A0evCEmrIk-8z4zO{margin:-2px 8px 0 0} b. yellow 10 7. c. gasoline products Study Guides - Wastewater Operator Certification IEPA Topics Water Quality Wastewater Operator Certification Study Guides Exam Schedule Study Guides Class 1 Class 2 Class 3 Class 4 Operator-In-Training Class K - Industrial Collection System For more information contact: Dianne Potter at 217-782-9720 Are you saying that the questions were easier on the actual test or harder? Introduction To what pH should wastewater be raised to halt sulfide production and inhibit sludge growth and biological slimes? Waste Treatment Ponds: What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? Sludge Digestion & Solids Handling: Effluent Disposal: c. green Where would toxicants least likely cause a problem for a wastewater treatment plant? acid fermentaters would predominate and pH would decrease, Sludge Digestion & Solids Handling: GLOSSARY OF WASTEWATER WORDS 22-28 . Wastewater Solids Processing: Odor Control: 0000004525 00000 n d. temperature. b. screenings a. gravity b. a little organic material Disinfection: 0000002075 00000 n The panel is comprised of 8 experts who c. COD 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? Residual Solids Management: negative pole of an electrolytic cell or system, Unless water cooled, the operating temperature of a mechanical seal in a pump should never exceed. Post was not sent - check your email addresses! Math questions include the method to solve. Ponds used in series after a trickling filter are sometimes called? a bacteria sample must be mailed so that the lab analysis can begin no later than. Microorganisms that are methane fermenters will only produce in the pH range of, Sludge Digestion & Solids Handling: too much lime has been added, reducing gas production. Which of the following groups of microorganisms are found in a good settling mixed liquor? Regarding waste pond lab sampling, which parameter is sampled at the influent of the pond? For an examinee or testing client unfamiliar with the Association of Boards of Certification's computerized exams, Experience ABC's Computerized Exams gives a closer look. The best operation performance for an anaerobic digester is when it is feed Basic Chemistry: d. N2O. d. remove sludge digester, Odor Control: View the 2020-2021 wastewater exam summary statistics of quarterly exam results HERE. Another name for slime growth is, Trickling Filters: Sorry, this post was deleted by the person who originally posted it. When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? Study Guide . The following are approved as reference sources for the 2017 ABC standardized wastewater treatment operator exams. Grade 4 Wastewater Certification Wastewater Extra Questions Grade 1 Wastewater certification review grade. Activated Sludge: Campus Box 1075 - Southern Illinois Univ. The program suggests purchasing their books from Sacramento. b. phosphoric acid d. phosphorous, Activated Sludge: a. gravity d. hydrogen sulfide. When is the pH in a waste pond the highest? Pass your test the first time! a. no organics Please select the correct language below. Jake Mixed liquor is a combination of what 3 things? a. A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? Southern Illinois Univ. ._1aTW4bdYQHgSZJe7BF2-XV{display:-ms-grid;display:grid;-ms-grid-columns:auto auto 42px;grid-template-columns:auto auto 42px;column-gap:12px}._3b9utyKN3e_kzVZ5ngPqAu,._21RLQh5PvUhC6vOKoFeHUP{font-size:16px;font-weight:500;line-height:20px}._21RLQh5PvUhC6vOKoFeHUP:before{content:"";margin-right:4px;color:#46d160}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{display:inline-block;word-break:break-word}._22W-auD0n8kTKDVe0vWuyK{font-weight:500}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{font-size:12px;line-height:16px}._244EzVTQLL3kMNnB03VmxK{font-weight:400;color:var(--newCommunityTheme-metaText)}._2xkErp6B3LSS13jtzdNJzO{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;margin-top:13px;margin-bottom:2px}._2xkErp6B3LSS13jtzdNJzO ._22W-auD0n8kTKDVe0vWuyK{font-size:12px;font-weight:400;line-height:16px;margin-right:4px;margin-left:4px;color:var(--newCommunityTheme-actionIcon)}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y{border-radius:4px;box-sizing:border-box;height:21px;width:21px}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(2),._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(3){margin-left:-9px} Grease should be cleaned from walkaways with a stiff brush and Activated Sludge: If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? Introduction to Water & Wastewater Treatment Technology - This course from Mountain Empire Community College includes 19 lessons tracing the flow of water from the source through treatment, storage, distribution, use, waste collection, treatment and discharge back into the environment. 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 8 0 obj Solids removal from secondary effluent: Because water samples sometimes require repeat or backup tests, the amount of sample that should collected for samples that are preserved and transported for any particular analysis should be at least____times the amount for those analysis, Effluent Disposal: Sludge Digestion & Solids Handling: What would be the cause of a shorted-winding in a motor? c. increase mixing ABC's website provides Need to Know Criteria for exams. IEPA Frequently Asked Questions - http://www.epa.illinois.gov/topics/drinking-water/operator-certification/faq/index 2022 Water Operator Exam Schedule Still have questions not answered here?? Motor insulation material comes in four classes and the are based on_______, Maintenance: Waste Treatment Ponds: the floating cover on an anaerobic should be inspected how often? How ofter should the drive bearings be greased in a rotating biological contactor unit? b. they can handle a large range of flows VI. c. orifice + d. fats. 14/08/2014 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. what % of the dissolved solids in wastewater are inorganics, Wastewater sources & characteristics: . One solids treatment thickening process would be: Which type of feeder would most likely feed clear solutions? How often should the oil in the chain casing be changed? Draft tube propeller mixers are subject to corrosion from____ d. have a density significantly greater than water, contain 20-25% nonvolatile inorganic matter. The exams are aimed at your overall knowledge and experience in the field as an operator, not just skills and experience of the system you are currently running. If the ponds or lagoons had an ammonia odor, what would be the most likely solution? Basic Chemistry: Rotating Biological Contactors: a. clarifier Class 2 Wastewater Test Questions fullexams com. Sludge Digestion & Solids Handling: a. organic toxicants Residual Solids Management: All rights reserved. Wastewater treatment systems protect public health and the environment only if they are being properly operated and maintained. Safety: d. pure oxygen, Activated Sludge: Electrical units operating in areas exposed to flammable vapors should_______. Im trying to pass n-2 failed twice by two points . You have already completed the quiz before. (3) reddish brown, Activated Sludge: What type of fire extinguishers should be used on electrical fires? ISAWWA offers a full range of online classes, all approved by the IEPA with RTC hours. The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? a. incineration Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. d. phosphate-free surfactant, Activated Sludge: How many stages are usually present in the rotating biological contactor process? An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: ABC wastewater exam class III : r/Wastewater. Complete the test and know your score instantly. The clarity of a chlorine contact basin's effluent is considered good when the "Secchi" disk can be read at a level of___ft, Ca Grade 2 Wastewater Treatment Operator Prac, Wastewater Treatment Operator Certification T, 3 , , WasteWater Operator Certification Study Guide, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. WasteWater Operator Certification, Grade 2, Wastewater Treatment Facilities: If you want more practice problems, click here . (time of day), Waste Treatment Ponds: b. grit Wastewater Solids Processing: It makes it a lot more challenging when, say, your system is just lagoons and they are asking questions about advanced processes. DERFSTA. a. step aeration MATERIAL AND METHODS 2,380 Gal./Min. $32 c. $36 d. $42.50 H2SO4. Wide, and 14 ft. Another solids treatment thickening process would be: Press J to jump to the feed. 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 Usually, what is the % accuracy of a graduated cylinder and burette? c. sludge age Colorado uses the 2019 edition of standard, sequential examinations developed by the Association of Boards of Certification (ABC) for all classes of certificates, except Classes "S" and "T" which are custom exams. by coe1069, Answers and references are included for questions. What is the ultimate measure of effective chlorination? Basic Chemistry: c. hypochlorite acid 0000045196 00000 n Approx. Edwardsville, IL 62026-1075 (618) 650-2030 7. And what online studies did you use? Which one of the following methods would not be used to feed DRY chemicals? d. remove sludge from grit channel, Odor Control: Practice Exam #1 Practice Exam #1 - Answers Practice Exam #2 - Answers Practice Exam #2 Practice Exam #1 - Answers c. 100:10:3 The specific gravity standard for gases is_______, Basic Chemistry: Odor Control: Another guy told me thats what he uses instead of the sacramento. a.complete mix aeration Wastewater Solids Processing: The exam consists of 100 multiple choice questions. stream We'll bring you back here when you are done. Sludge Digestion & Solids Handling: Rotating Biological Contactors: 3 stages 1. That may seem obvious but, too many people take the certification exam with little or no preparation. Sludge Digestion & Solids Handling: A solids treatment dewatering process method would be" WEF/ABC/C 2 EP Collection Systems Operators' Guide to Preparing for the Certification Examination. Please take this quiz and check how well do you know about CA water treatment plant operator! What about the removal of suspended solids? Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? Rotating Biological Contactors: If an induction motor is rated at 40 amps for a full-load current, what will be the most probable starting sequence amps required? worked for me on the class IV. In addition, the class covers most of the study guide questions and provides the operators with the best answers.The cost for the class is $199.00. Hb```f``d30 P9eVcrV),VA`}. Wastewater Operator Certification Exam Book List. b. reduce turbulence Wastewater Solids Processing: Wastewater sources & characteristics: b. nitrogen f.FeathrBoomerang=r;var g=e.createElement(a), 1 Study only Chapters 1 and 8 (Introduction to Wastewater Treatment, 1.1 through 1.9 and 8.3 through 8.5) of Book #1. $25 b. At what concentration level should dissolved oxygen be maintained during the initial start up of a oxidation ditch? In the activated sludge system for the process control of effluent suspended solids, what is the primary controlling variable for the desired microbial population? d. dissolved oxygen, Wastewater Solids Processing: To go to the Class 2 & 3 Study Guide Click on above tab. Mar. Certification testing is offered as a computer-based test. b. flotation c. carbon in organic matter d. preaeration. Chlorine disinfects water much slower at a pH around 7.0 than at a pH over 8.0. b. extended aeration activate sludge a. screw feeder The plant engineer estimates the machine has a useful life of 5 years and no salvage value. If the gas pressure in a digester is lower than normal, what is the most probable cause? What type of pond would receive wastewater form a secondary treatment system? b. concentration b. pH The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. Edwardsville, IL 62026-1075 (618) 650-2030 . 0000002114 00000 n What is the chemical formula for sulfuric acid? Math High suspended solids and BOD are most probably associated with which type of organisms? No stress. Keyword Glossary. also, i wouldn't be worried about retesting. What organism would most likely enhance the penetration of oxygen into the activated sludge, Rocks/Screens/Comminutors & Grit Removal: I just challenged the Water Treatment level 1 exam this Monday and noticed there were questions regarding distribution on it as well. Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. ._1EPynDYoibfs7nDggdH7Gq{margin-bottom:8px;position:relative}._1EPynDYoibfs7nDggdH7Gq._3-0c12FCnHoLz34dQVveax{max-height:63px;overflow:hidden}._1zPvgKHteTOub9dKkvrOl4{font-family:Noto Sans,Arial,sans-serif;font-size:14px;line-height:21px;font-weight:400;word-wrap:break-word}._1dp4_svQVkkuV143AIEKsf{-ms-flex-align:baseline;align-items:baseline;background-color:var(--newCommunityTheme-body);bottom:-2px;display:-ms-flexbox;display:flex;-ms-flex-flow:row nowrap;flex-flow:row nowrap;padding-left:2px;position:absolute;right:-8px}._5VBcBVybCfosCzMJlXzC3{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:21px;color:var(--newCommunityTheme-bodyText)}._3YNtuKT-Is6XUBvdluRTyI{position:relative;background-color:0;color:var(--newCommunityTheme-metaText);fill:var(--newCommunityTheme-metaText);border:0;padding:0 8px}._3YNtuKT-Is6XUBvdluRTyI:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;border-radius:9999px;background:var(--newCommunityTheme-metaText);opacity:0}._3YNtuKT-Is6XUBvdluRTyI:hover:before{opacity:.08}._3YNtuKT-Is6XUBvdluRTyI:focus{outline:none}._3YNtuKT-Is6XUBvdluRTyI:focus:before{opacity:.16}._3YNtuKT-Is6XUBvdluRTyI._2Z_0gYdq8Wr3FulRLZXC3e:before,._3YNtuKT-Is6XUBvdluRTyI:active:before{opacity:.24}._3YNtuKT-Is6XUBvdluRTyI:disabled,._3YNtuKT-Is6XUBvdluRTyI[data-disabled],._3YNtuKT-Is6XUBvdluRTyI[disabled]{cursor:not-allowed;filter:grayscale(1);background:none;color:var(--newCommunityTheme-metaTextAlpha50);fill:var(--newCommunityTheme-metaTextAlpha50)}._2ZTVnRPqdyKo1dA7Q7i4EL{transition:all .1s linear 0s}.k51Bu_pyEfHQF6AAhaKfS{transition:none}._2qi_L6gKnhyJ0ZxPmwbDFK{transition:all .1s linear 0s;display:block;background-color:var(--newCommunityTheme-field);border-radius:4px;padding:8px;margin-bottom:12px;margin-top:8px;border:1px solid var(--newCommunityTheme-canvas);cursor:pointer}._2qi_L6gKnhyJ0ZxPmwbDFK:focus{outline:none}._2qi_L6gKnhyJ0ZxPmwbDFK:hover{border:1px solid var(--newCommunityTheme-button)}._2qi_L6gKnhyJ0ZxPmwbDFK._3GG6tRGPPJiejLqt2AZfh4{transition:none;border:1px solid var(--newCommunityTheme-button)}.IzSmZckfdQu5YP9qCsdWO{cursor:pointer;transition:all .1s linear 0s}.IzSmZckfdQu5YP9qCsdWO ._1EPynDYoibfs7nDggdH7Gq{border:1px solid transparent;border-radius:4px;transition:all .1s linear 0s}.IzSmZckfdQu5YP9qCsdWO:hover ._1EPynDYoibfs7nDggdH7Gq{border:1px solid var(--newCommunityTheme-button);padding:4px}._1YvJWALkJ8iKZxUU53TeNO{font-size:12px;font-weight:700;line-height:16px;color:var(--newCommunityTheme-button)}._3adDzm8E3q64yWtEcs5XU7{display:-ms-flexbox;display:flex}._3adDzm8E3q64yWtEcs5XU7 ._3jyKpErOrdUDMh0RFq5V6f{-ms-flex:100%;flex:100%}._3adDzm8E3q64yWtEcs5XU7 .dqhlvajEe-qyxij0jNsi0{color:var(--newCommunityTheme-button)}._3adDzm8E3q64yWtEcs5XU7 ._12nHw-MGuz_r1dQx5YPM2v,._3adDzm8E3q64yWtEcs5XU7 .dqhlvajEe-qyxij0jNsi0{font-size:12px;font-weight:700;line-height:16px;cursor:pointer;-ms-flex-item-align:end;align-self:flex-end;-webkit-user-select:none;-ms-user-select:none;user-select:none}._3adDzm8E3q64yWtEcs5XU7 ._12nHw-MGuz_r1dQx5YPM2v{color:var(--newCommunityTheme-button);margin-right:8px;color:var(--newCommunityTheme-errorText)}._3zTJ9t4vNwm1NrIaZ35NS6{font-family:Noto Sans,Arial,sans-serif;font-size:14px;line-height:21px;font-weight:400;word-wrap:break-word;width:100%;padding:0;border:none;background-color:transparent;resize:none;outline:none;cursor:pointer;color:var(--newRedditTheme-bodyText)}._2JIiUcAdp9rIhjEbIjcuQ-{resize:none;cursor:auto}._2I2LpaEhGCzQ9inJMwliNO,._42Nh7O6pFcqnA6OZd3bOK{display:inline-block;margin-left:4px;vertical-align:middle}._42Nh7O6pFcqnA6OZd3bOK{fill:var(--newCommunityTheme-button);color:var(--newCommunityTheme-button);height:16px;width:16px;margin-bottom:2px} 23BIbVc^(2el!jO1gXFi!20IIew"-bRZ\Z 1mnH35_l^tE+SedZIinbz0FQ&|Y1la@YuGfrg|I-'6s @LYiFag6Td[l\* Activated Sludge Module 4 . Stabilization Ponds Operations Manual USEPA 430/9-77-012 Solids removal from secondary effluent: Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . Compute the depreciation schedule using: (a) Straight-line depreciation (b) Sum-of-years'-digits depreciation (c) Double declining balance depreciation (assume any remaining depreciation is claimed in the last year). Verified questions. The small wastewater system certificate is a "hybrid" certificate, combining both wastewater treatment and wastewater collection expertise for communities that serve fewer than 3,300 persons. Sludge Digestion & Solids Handling: Rotating Biological Contactors: When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: The industrial Class K (facility-specific) exam has a total of 15 questions, 5 multiple choice short answer/essay. The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. a. reducing the number if weeds Determine the percentage volatile suspended solids of a sample given the following data. I took the provided training seminars but with COVID they're all zoom . b. bleach d. organic toxicants, Activated Sludge: b. trickling filter 0000001543 00000 n (22.60 g 21.03 g) (21.75 g 21.03 g), Click to share on LinkedIn (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email this to a friend (Opens in new window), Practice Question: Temperature Affect on Denitrification, Practice Question: Water System Evaluation. The water quality parameters of pH and alkalinity and the presence of toxic substances can impact plant operation, because of their The recommended minimum depth for a waste pond is". I also recommend these practice test to my coworkers. Basic Chemistry: Test takers are allowed three hours to complete the exam. Every test is created from a pool of possible water distribution questions. An atmosphere is defined as oxygen deficient if it contains less than what % oxygen by volume? b. Wastewater Solids Processing: 2017 Wastewater Treatment Operator Formula/Conversion Table. 0000001180 00000 n The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. a. sand drying beds Final DO: 5.9. In general, secondary sludges: Monitor electrical equipment E.coli Test Operate safety equipment . Surface loading and detention time is a clarifier are directly related to: Sedimentation and Flotation: 100:2:1 Residual Solids Management: ._3Z6MIaeww5ZxzFqWHAEUxa{margin-top:8px}._3Z6MIaeww5ZxzFqWHAEUxa ._3EpRuHW1VpLFcj-lugsvP_{color:inherit}._3Z6MIaeww5ZxzFqWHAEUxa svg._31U86fGhtxsxdGmOUf3KOM{color:inherit;fill:inherit;padding-right:8px}._3Z6MIaeww5ZxzFqWHAEUxa ._2mk9m3mkUAeEGtGQLNCVsJ{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:18px;color:inherit} Sludge Digestion & Solids Handling: Add to folder How often should the motor bearings be greased in a rotating biological contactor unit? a. nitrate _____? when taking a bacteria sample, the sample bottle should be filled with water. The passing grade is 70%. All occupied trenches 4 or more feet deep must provide exits at. . You have to finish following quiz, to start this quiz: When organic wastes are discharged to receiving water, oxygen is depleted by. c. composting d. 8 stages, Rotating Biological Contactors: support for the floating cover when it is at its lowest point. Phone (800) 666-0206. a. flush out distributor arms b. improve operations before digester c. add treatment chemicals 4.5 in. b. wet air oxidation The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. Safety: Sludge Digestion & Solids Handling: They do list the books they pull info from. Took the class III exam from the ABC program yesterday and felt very under knowledge. c. trisodium phosphate d. composting, Wastewater Solids Processing: b. decanter every month. The ABC formula sheet is provided, and you must bring a non-programmable calculator. -high surface turbulence. The resources below are provided as an aid to students studying and practicing for their state exams as well as a helpful resource in the daily operation of a water/wastewater treatment plant. THESE ARE TO HELP YOU LEARN AND APPLY THE CONCEPTS THAT WILL HELP YOU PASS A STATE EXAM. Waste Treatment Ponds: Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. If the manometer indicates the gas pressure in a digester is below normal, what would be the most probable cause? The standard for gases has a density of. trailer << /Size 71 /Info 56 0 R /Root 59 0 R /Prev 99132 /ID[<188235b86438cd10632dbf081acd9545>] >> startxref 0 %%EOF 59 0 obj << /Type /Catalog /Pages 54 0 R /Metadata 57 0 R /PageLabels 52 0 R >> endobj 69 0 obj << /S 236 /L 297 /Filter /FlateDecode /Length 70 0 R >> stream they prevent foaming in the annular space. Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - b. food entering the process (solids) DO Name the solids treatment method that has a solids buildup which forms a blanket on the bottom and forces the water out due to compression? Class 4 Wastewater IL 4.0 (1 review) Term 1 / 88 What do you do if a sewer line is plugged? Each question has been validated through a process of panel review. The Association Certification of Boards doesnt take all of their questions from one book, there are usually several books that they take information from and then compile an exam. d. hydrochloric acid. -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. VII. a) 346.2 b) 2229 Off GPM 7207 c) 3.23 33.4 in. Was it a 3 in collections or treatment? a. BOD Activated Sludge: Back to CCWP - Steps to becoming certified. c. power requirements are low 2,323 Gal./Min. I found a lot of the 3 questions were around anaerobic digestion so I focused a lot on that and it helped me pass. Activated Sludge: 50%. What is the odor detection limit of chlorine gas? Reliability can only . Wastewater sources & characteristics: Sedimentation and Flotation: c. sulfuric acid Sludge Digestion & Solids Handling: Safety: What do skirts provide in anaerobic digesters? 10 PPM. b. are more fibrous the clarifier is hydraulically overloaded, Effluent Disposal: d. compost. Southern Illinois University Edwardsville is authorized to operate as a postsecondary educational institution by the Illinois . My tests are based off of ABC and Sacramento too. 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