c. add treatment chemicals the books are a tad overkill for the ABC tests. What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? c. trisodium phosphate c. 6 stages proper operation. GLOSSARY OF WASTEWATER WORDS 22-28 . Best of luck you! The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. . 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. primary effluent What does the wastewater industry call sludge that is only partially digested? No stress. Odor Control: Sludge Digestion & Solids Handling: a. nitrate Sedimentation and Flotation: Wastewater Certification Information By State October 30, 2018 We have many people contact us regarding Wastewater Operator Certification in many states. If an activated sludge plant is hit with a high organic load, what will most like occur in the aeration tank? What is the critical factor in any method to control the aeration tank? . The major gas produced by aerobic decomposition is:_______. ABC wastewater exam class III : r/Wastewater. If is not recommended to start up trickling filters in the _____(season) because bacteria are most ofter dormant at this time, Trickling Filters: c. 100:10:3 c. about half the volume as the grit being removed Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - that is they must test what they are supposed to test. Water Environment Federation Bookstore. Discussion of water and wastewater treatment processes and technology. What is "the" major factor in predicting the performance of wastewater clarifiers? b. primary clarification Wastewater Solids Processing: d. positive displacement. Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. What type of fire extinguishers should be used on electrical fires? The solids treatment method usually dewaters solids by mixing them with a bulking agent and then waiting for biological stabilization to occur? If a sludge cake consists of 60% solids, where did it mostly likely originate from? A solids treatment stabilization process method would be: Non -sewage: This is discharged by manufacturing processes and commercial enterprises. d. extended aeration activated sludge. Wastewater Class 2 multiple choice. This course will prepare you to pass your entry level wastewater treatment operator exam with confidence and get you started on your way to a successful and satisfying career in wastewater treatment. ISAWWA offers a full range of online classes, all approved by the IEPA with RTC hours. Sludge Digestion & Solids Handling: May 7th, 2018 - Revised March 2003 Illinois Environmental Protection Agency Wastewater Operator Certification If this is your first exam attempt . d. chemical addition with counter masking or masking agents, chemical addition with counter masking or masking agents. a. no organics Stabilization Ponds Operations Manual USEPA 430/9-77-012 d. phosphate-free surfactant, Activated Sludge: %PDF-1.4 % Sludge Digestion & Solids Handling: -the tank is exhibiting high rates of foaming. b. toxic gases Activated Sludge: How often should the oil in the chain casing be changed? Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. at least two pipe diameters above the rim. 0000002075 00000 n How often should the motor bearings be greased in a rotating biological contactor unit? Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). d. remove sludge from grit channel, Odor Control: Wastewater Solids Processing: How far out from the water's edge should waste pond samples be collected? Water Treatment Certification practice tests, flashcards, study guides, and more. How do you calibrate a chemical feed pump? The RX Drug Company has just purchased a capsulating machine for $76,000. A fish is 2.5m2.5 \mathrm{~m}2.5m in front of the diving mask. This means that each wastewater treatment facility in Illinois is required to be operated by a wastewater operator who is certified at or above the certification level required for the treatment facility. b. mineral oils c. reduce the number of weeds a. several times a day Practice Tests. The Examination Request for Wastewater Operator Certification must be submitted for a Letter of Admission to be issued. Adequate ___BOD, ____nitrogen, ____Phosphorous ratio for microorganisms to grow is usually c. aerobic pond .s5ap8yh1b4ZfwxvHizW3f{color:var(--newCommunityTheme-metaText);padding-top:5px}.s5ap8yh1b4ZfwxvHizW3f._19JhaP1slDQqu2XgT3vVS0{color:#ea0027} 0000004525 00000 n 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? Another name for a waste stabilization pond is, Wastewater sources & characteristics: In the activated sludge system for the process control of effluent suspended solids, what is the primary controlling variable for the desired microbial population? .c_dVyWK3BXRxSN3ULLJ_t{border-radius:4px 4px 0 0;height:34px;left:0;position:absolute;right:0;top:0}._1OQL3FCA9BfgI57ghHHgV3{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;-ms-flex-pack:start;justify-content:flex-start;margin-top:32px}._1OQL3FCA9BfgI57ghHHgV3 ._33jgwegeMTJ-FJaaHMeOjV{border-radius:9001px;height:32px;width:32px}._1OQL3FCA9BfgI57ghHHgV3 ._1wQQNkVR4qNpQCzA19X4B6{height:16px;margin-left:8px;width:200px}._39IvqNe6cqNVXcMFxFWFxx{display:-ms-flexbox;display:flex;margin:12px 0}._39IvqNe6cqNVXcMFxFWFxx ._29TSdL_ZMpyzfQ_bfdcBSc{-ms-flex:1;flex:1}._39IvqNe6cqNVXcMFxFWFxx .JEV9fXVlt_7DgH-zLepBH{height:18px;width:50px}._39IvqNe6cqNVXcMFxFWFxx ._3YCOmnWpGeRBW_Psd5WMPR{height:12px;margin-top:4px;width:60px}._2iO5zt81CSiYhWRF9WylyN{height:18px;margin-bottom:4px}._2iO5zt81CSiYhWRF9WylyN._2E9u5XvlGwlpnzki78vasG{width:230px}._2iO5zt81CSiYhWRF9WylyN.fDElwzn43eJToKzSCkejE{width:100%}._2iO5zt81CSiYhWRF9WylyN._2kNB7LAYYqYdyS85f8pqfi{width:250px}._2iO5zt81CSiYhWRF9WylyN._1XmngqAPKZO_1lDBwcQrR7{width:120px}._3XbVvl-zJDbcDeEdSgxV4_{border-radius:4px;height:32px;margin-top:16px;width:100%}._2hgXdc8jVQaXYAXvnqEyED{animation:_3XkHjK4wMgxtjzC1TvoXrb 1.5s ease infinite;background:linear-gradient(90deg,var(--newCommunityTheme-field),var(--newCommunityTheme-inactive),var(--newCommunityTheme-field));background-size:200%}._1KWSZXqSM_BLhBzkPyJFGR{background-color:var(--newCommunityTheme-widgetColors-sidebarWidgetBackgroundColor);border-radius:4px;padding:12px;position:relative;width:auto} Rainwater runoff is also considered as w Name ____________________________________ The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. b. vibrating trough VII. ._3K2ydhts9_ES4s9UpcXqBi{display:block;padding:0 16px;width:100%} What is the name of the solids treatment method that maintains a certain pH for at least 2 hrs, then with the final product which can then be applied directly to land is called______. When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? c. rotating feeder A wastewater [plant has a train of three rotating biological contactor (RBC) units. Sludge Digestion & Solids Handling: a. pH How many steps are the in coagulation? % a. contain 20-25% nonvolatile inorganic matter No sweat, as my boss says, "how you suppose to know what to study if you haven't taken the test before". Water and Wastewater Courses For Operator Certification. One solids treatment thickening process would be: 0000000607 00000 n d. scum, Residual Solids Management: Wastewater Solids Processing: b. they can handle a large range of flows -high surface turbulence. Illinois Rural Water Association 3305 Kennedy Road; PO Box 49 Taylorville, IL 62568 Phone: 217-287-2115 Fax: 217-824-8638 Email: ilrwa@ilrwa.org b. d. dissolved oxygen, Wastewater Solids Processing: Rotating Biological Contactors: Making water clean. VI. The best operation performance for an anaerobic digester is when it is feed Wide, and 14 ft. What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? Sludge Digestion & Solids Handling: DO 50%. H2SO4. What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? The last stage is the treatment of RMW. b. c. has less flocculant than primary sludges excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: Illinois EPA certifies the technical competency of . a. pH c. sludge age b. decanter 10 PPM. . What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? Grade 4 Wastewater Certification Wastewater Extra Questions Grade 1 Wastewater certification review grade. If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? Study key C amp D IN gov. d. about the same volume as the grit being removed. -all blowers are running. b. improve operations before digester b. toxic gases ._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} 100:5:1 The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: c. rotating feeder Activated Sludge: 14 sec. Phone (800) 666-0206. THESE ARE TO HELP YOU LEARN AND APPLY THE CONCEPTS THAT WILL HELP YOU PASS A STATE EXAM. What do ballast blocks provide in anaerobic digesters? the floating cover on an anaerobic should be inspected how often? (b) What is the magnification of the image of the fish? b. are more fibrous Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . Basic Chemistry: Sludge Digestion & Solids Handling: d. brown Please select the correct language below. d. raw sewage. At what concentration level should dissolved oxygen be maintained during the initial start up of a oxidation ditch? Another solids treatment thickening process would be: Flow Patterns. A pond that contains oxygen in its upper layers and lacks oxygen in the bottom layer is classified as, Waste Treatment Ponds: . d. flood the filter. Equilibrium system and stress factors What is the expected range for the removal of settleable solids from a primary clarifier? These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? b. trickling filter 10 PPM. b. contact stabilization Disinfection: Activated Sludge Module 2 . .Rd5g7JmL4Fdk-aZi1-U_V{transition:all .1s linear 0s}._2TMXtA984ePtHXMkOpHNQm{font-size:16px;font-weight:500;line-height:20px;margin-bottom:4px}.CneW1mCG4WJXxJbZl5tzH{border-top:1px solid var(--newRedditTheme-line);margin-top:16px;padding-top:16px}._11ARF4IQO4h3HeKPpPg0xb{transition:all .1s linear 0s;display:none;fill:var(--newCommunityTheme-button);height:16px;width:16px;vertical-align:middle;margin-bottom:2px;margin-left:4px;cursor:pointer}._1I3N-uBrbZH-ywcmCnwv_B:hover ._11ARF4IQO4h3HeKPpPg0xb{display:inline-block}._2IvhQwkgv_7K0Q3R0695Cs{border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._2IvhQwkgv_7K0Q3R0695Cs:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B{transition:all .1s linear 0s;border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._1I3N-uBrbZH-ywcmCnwv_B:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B.IeceazVNz_gGZfKXub0ak,._1I3N-uBrbZH-ywcmCnwv_B:hover{border:1px solid var(--newCommunityTheme-button)}._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk{margin-top:25px;left:-9px}._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:focus-within,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:hover{transition:all .1s linear 0s;border:none;padding:8px 8px 0}._25yWxLGH4C6j26OKFx8kD5{display:inline}._2YsVWIEj0doZMxreeY6iDG{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-metaText);display:-ms-flexbox;display:flex;padding:4px 6px}._1hFCAcL4_gkyWN0KM96zgg{color:var(--newCommunityTheme-button);margin-right:8px;margin-left:auto;color:var(--newCommunityTheme-errorText)}._1hFCAcL4_gkyWN0KM96zgg,._1dF0IdghIrnqkJiUxfswxd{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}._1dF0IdghIrnqkJiUxfswxd{color:var(--newCommunityTheme-button)}._3VGrhUu842I3acqBMCoSAq{font-weight:700;color:#ff4500;text-transform:uppercase;margin-right:4px}._3VGrhUu842I3acqBMCoSAq,.edyFgPHILhf5OLH2vk-tk{font-size:12px;line-height:16px}.edyFgPHILhf5OLH2vk-tk{font-weight:400;-ms-flex-preferred-size:100%;flex-basis:100%;margin-bottom:4px;color:var(--newCommunityTheme-metaText)}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX{margin-top:6px}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._3MAHaXXXXi9Xrmc_oMPTdP{margin-top:4px}
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