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Secondary Treatment: The following are approved as reference sources for the 2017 ABC standardized wastewater treatment operator exams. Available to Treatment and Distribution Members. c. hypochlorite acid b. complete mix aeration decomposition of a material caused by an outside electric current, A shock load of toxic wastes coming into a plant can be treated or controlled with, {"cdnAssetsUrl":"","site_dot_caption":"Cram.com","premium_user":false,"premium_set":false,"payreferer":"clone_set","payreferer_set_title":"Wastewater Grade 4 Questions","payreferer_url":"\/flashcards\/copy\/wastewater-grade-4-questions-4642202","isGuest":true,"ga_id":"UA-272909-1","facebook":{"clientId":"363499237066029","version":"v12.0","language":"en_US"}}. Outline Introduction 2,380 Gal./Min. I passed the next time. Flow Patterns. Wastewater Tougher Questions wastewater grade 1 Wastewater Certification Grade 2 Flashcards Wastewater Grade 4 Questions Wastewater Grade 4 Questions by coe1069 , Mar. The program suggests purchasing their books from Sacramento. c. 100:10:3 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. Standards of conduct and practice were revised to exclude marijuana-related drug distribution misdemeanor convictions from convictions that a regulant must report to the Board. If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? b. phosphoric acid Wastewater Certification practice tests, flashcards, study guides, and more. b. yellow Statistics from 2019 HERE. Which one of the following best defines the term stray-current corrosion? Complete the test and know your score instantly. Sludge Digestion & Solids Handling: Secondary Treatment: Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. Keyword Glossary. Class K Study Guide Industrial Wastewater Operator Certification . 5,$>/SFZ=_Y;PA v UhK1.N7,#Fi__&5&h5mm>b8AE^dGP7\A6fS-/z%o%ND(uaheK^R`;tf![mIMv=X%[ej1v!OypyRO5Qje|=:"*!KUgJ}-*C_.>(P@&iGl/W"-vZe0}[T]]M AWw4q:;) x~H60qg;05?R52NQD* oqIyyydw/5[yU f[Wo3Z0/=y_avd67!@vP1[ =7$F5]X\. d. activated sludge. Math b. vibrating trough c. flammable oils .LalRrQILNjt65y-p-QlWH{fill:var(--newRedditTheme-actionIcon);height:18px;width:18px}.LalRrQILNjt65y-p-QlWH rect{stroke:var(--newRedditTheme-metaText)}._3J2-xIxxxP9ISzeLWCOUVc{height:18px}.FyLpt0kIWG1bTDWZ8HIL1{margin-top:4px}._2ntJEAiwKXBGvxrJiqxx_2,._1SqBC7PQ5dMOdF0MhPIkA8{vertical-align:middle}._1SqBC7PQ5dMOdF0MhPIkA8{-ms-flex-align:center;align-items:center;display:-ms-inline-flexbox;display:inline-flex;-ms-flex-direction:row;flex-direction:row;-ms-flex-pack:center;justify-content:center} By the way, please keep in mind these problems are for anyone who is pursuing the first two certification levels. Jake d. settleable solids, Activated Sludge: c. applying chlorine Sludge Digestion & Solids Handling: Sample Question. Illinois EPA certifies the technical competency of . The exam consists of 100 multiple choice questions. Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? Activated Sludge: Which property uniquely identifies a chemical element? The plant engineer estimates the machine has a useful life of 5 years and no salvage value. Hydrogen Sulfide will exist in a system depending on the presence or absence of_____. What is the recommended withdrawal of chlorine in pounds from a 100 or 150 lb cylinder in a 24-hr period such that freezing does not occur? The last stage is the treatment of RMW. Lab-Getting Trendy . Please select the correct language below. c. improve housekeeping around drying beds Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: Wastewater Collections Grade 2 Practice Test California Wastewater Collections Grade 2 Practice Test California Water and Wastewater Courses For Operator Certification. Sludge Digestion & Solids Handling: WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. Odor Control: c. temperature Activated Sludge: 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 (2) reddish brown What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: Sedimentation and Flotation: What document provides a profile of hazardous substances and/or mixtures? 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. Rotating Biological Contactors: What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? Sludge Digestion & Solids Handling: Another name for a waste stabilization pond is, Wastewater sources & characteristics: Just wanted to make sure Im looking at the right tests/guides. d. raw sewage. Perfect for water distribution operators taking their D-1, D-2, D3 Operator exams (DI-DIII.) Another name for slime growth is, Trickling Filters: Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? How often should flame arresters be service on anaerobic digesters? g.async=!0,g.src=t,h.appendChild(g)} b. a little organic material Sludge Digestion & Solids Handling: Which one of the following species is ozone? d. belt presses, Wastewater Solids Processing: b. pH In general, secondary sludges: c. carbon in organic matter a.complete mix aeration name the laboratory glassware that can be used to heat liquids in an open flame? Rotating Biological Contactors: 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? This course includes the following lessons: System Design and Layout, Distribution Piping, Water Storage, Fire Hydrants and Valves, Water Meters, Pumps and Motors, Cross-Connection Control, Disinfection, Corrosion Control, Water Quality, Water Main Installation and Backfilling, Safety, Regulations, Hydraulics (b) What is the magnification of the image of the fish? Name the type of centrifuge that uses a knife or plow insertion to scrap off the "cake" from its walls? 2017 Wastewater Treatment Operator Class IV Wastewater Treatment Operator Formula/Conversion Table ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. Sludge Digestion & Solids Handling: Rotating biological contactors have all the following advantages except: One solids treatment thickening process would be: WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. d. positive displacement. Class 4 Study Guide Wastewater Operator Certification . When is the pH in a waste pond the lowest? By measuring the pump output. d)Test start standby pimps, motors and generators. a. nitrate d. hydrochloric acid. Sludge Digestion & Solids Handling: Safety: a. heavy metals Wastewater Solids Processing: THESE ARE NOT DUPLICATE QUESTIONS FROM ANY STATE EXAM. 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. primary effluent + What do roller guides provide in an anaerobic digester? Sludge Digestion & Solids Handling: while the pump is running, what is the pump rate in GPM? the Illinois EPA requires that routine bacteria samples to be taken and analyzed how often. Final DO: 5.9. 2,135 Gal./Min. ._38lwnrIpIyqxDfAF1iwhcV{background-color:var(--newCommunityTheme-widgetColors-lineColor);border:none;height:1px;margin:16px 0}._37coyt0h8ryIQubA7RHmUc{margin-top:12px;padding-top:12px}._2XJvPvYIEYtcS4ORsDXwa3,._2Vkdik1Q8k0lBEhhA_lRKE,.icon._2Vkdik1Q8k0lBEhhA_lRKE{border-radius:100%;box-sizing:border-box;-ms-flex:none;flex:none;margin-right:8px}._2Vkdik1Q8k0lBEhhA_lRKE,.icon._2Vkdik1Q8k0lBEhhA_lRKE{background-position:50%;background-repeat:no-repeat;background-size:100%;height:54px;width:54px;font-size:54px;line-height:54px}._2Vkdik1Q8k0lBEhhA_lRKE._1uo2TG25LvAJS3bl-u72J4,.icon._2Vkdik1Q8k0lBEhhA_lRKE._1uo2TG25LvAJS3bl-u72J4{filter:blur()}.eGjjbHtkgFc-SYka3LM3M,.icon.eGjjbHtkgFc-SYka3LM3M{border-radius:100%;box-sizing:border-box;-ms-flex:none;flex:none;margin-right:8px;background-position:50%;background-repeat:no-repeat;background-size:100%;height:36px;width:36px}.eGjjbHtkgFc-SYka3LM3M._1uo2TG25LvAJS3bl-u72J4,.icon.eGjjbHtkgFc-SYka3LM3M._1uo2TG25LvAJS3bl-u72J4{filter:blur()}._3nzVPnRRnrls4DOXO_I0fn{margin:auto 0 auto auto;padding-top:10px;vertical-align:middle}._3nzVPnRRnrls4DOXO_I0fn ._1LAmcxBaaqShJsi8RNT-Vp i{color:unset}._2bWoGvMqVhMWwhp4Pgt4LP{margin:16px 0;font-size:12px;font-weight:400;line-height:16px}.icon.tWeTbHFf02PguTEonwJD0{margin-right:4px;vertical-align:top}._2AbGMsrZJPHrLm9e-oyW1E{width:180px;text-align:center}.icon._1cB7-TWJtfCxXAqqeyVb2q{cursor:pointer;margin-left:6px;height:14px;fill:#dadada;font-size:12px;vertical-align:middle}.hpxKmfWP2ZiwdKaWpefMn{background-color:var(--newCommunityTheme-active);background-size:cover;background-image:var(--newCommunityTheme-banner-backgroundImage);background-position-y:center;background-position-x:center;background-repeat:no-repeat;border-radius:3px 3px 0 0;height:34px;margin:-12px -12px 10px}._20Kb6TX_CdnePoT8iEsls6{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;margin-bottom:8px}._20Kb6TX_CdnePoT8iEsls6>*{display:inline-block;vertical-align:middle}.t9oUK2WY0d28lhLAh3N5q{margin-top:-23px}._2KqgQ5WzoQRJqjjoznu22o{display:inline-block;-ms-flex-negative:0;flex-shrink:0;position:relative}._2D7eYuDY6cYGtybECmsxvE{-ms-flex:1 1 auto;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis}._2D7eYuDY6cYGtybECmsxvE:hover{text-decoration:underline}._19bCWnxeTjqzBElWZfIlJb{font-size:16px;font-weight:500;line-height:20px;display:inline-block}._2TC7AdkcuxFIFKRO_VWis8{margin-left:10px;margin-top:30px}._2TC7AdkcuxFIFKRO_VWis8._35WVFxUni5zeFkPk7O4iiB{margin-top:35px}._1LAmcxBaaqShJsi8RNT-Vp{padding:0 2px 0 4px;vertical-align:middle}._2BY2-wxSbNFYqAy98jWyTC{margin-top:10px}._3sGbDVmLJd_8OV8Kfl7dVv{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:21px;margin-top:8px;word-wrap:break-word}._1qiHDKK74j6hUNxM0p9ZIp{margin-top:12px}.Jy6FIGP1NvWbVjQZN7FHA,._326PJFFRv8chYfOlaEYmGt,._1eMniuqQCoYf3kOpyx83Jj,._1cDoUuVvel5B1n5wa3K507{-ms-flex-pack:center;justify-content:center;margin-top:12px;width:100%}._1eMniuqQCoYf3kOpyx83Jj{margin-bottom:8px}._2_w8DCFR-DCxgxlP1SGNq5{margin-right:4px;vertical-align:middle}._1aS-wQ7rpbcxKT0d5kjrbh{border-radius:4px;display:inline-block;padding:4px}._2cn386lOe1A_DTmBUA-qSM{border-top:1px solid var(--newCommunityTheme-widgetColors-lineColor);margin-top:10px}._2Zdkj7cQEO3zSGHGK2XnZv{display:inline-block}.wzFxUZxKK8HkWiEhs0tyE{font-size:12px;font-weight:700;line-height:16px;color:var(--newCommunityTheme-button);cursor:pointer;text-align:left;margin-top:2px}._3R24jLERJTaoRbM_vYd9v0._3R24jLERJTaoRbM_vYd9v0._3R24jLERJTaoRbM_vYd9v0{display:none}.yobE-ux_T1smVDcFMMKFv{font-size:16px;font-weight:500;line-height:20px}._1vPW2g721nsu89X6ojahiX{margin-top:12px}._pTJqhLm_UAXS5SZtLPKd{text-transform:none} When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: .FIYolDqalszTnjjNfThfT{max-width:256px;white-space:normal;text-align:center} Safety: Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. f.FeathrBoomerang=r;var g=e.createElement(a), .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)} a. total solids Typically, an anaerobic digester will produce about 30%-35% by volume of which gas? There are 22 individual lesson modules included in this course. 122 terms. c. power requirements are low My score on the exam was a B+ for the level one, my score for other exams have been much better. Activated Sludge: 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 Odor Control: Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. c. reduce the number of weeds Determine the percentage volatile suspended solids of a sample given the following data. Secondary Treatment: The City of Prattville is offering a new wastewater certification exam preparation course. Please take this quiz and check how well do you know about CA water treatment plant operator! 4 stages a. Campus Box 1075 - Southern Illinois Univ. Rotating Biological Contactors: 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. Odor Control: Certification Exam Prep; Continuing Education; Certificate Program; Utility Management 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. The most important factor in the high-rate process of anaerobic digestion is: a. oils and greases a. gravity Sludge Digestion & Solids Handling: d. dissolved oxygen, Wastewater Solids Processing: b. using masking agents These questions are similar to, but not the same as, the questions you are likely to encounter on your certification exam. The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. Need to know criteria. ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. Typically what average percent of total solids in a domestic wastewater, both dissolved and suspended, are inorganics. Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). Sludge Digestion & Solids Handling: All I used were the study guide modules 1 and 2 on this website https://royceu.com/Public/PracticeQuizes.aspx I kept doing them until I was getting scores above 90. -pH is 7.2. c. sludge digester @keyframes _1tIZttmhLdrIGrB-6VvZcT{0%{opacity:0}to{opacity:1}}._3uK2I0hi3JFTKnMUFHD2Pd,.HQ2VJViRjokXpRbJzPvvc{--infoTextTooltip-overflow-left:0px;font-size:12px;font-weight:500;line-height:16px;padding:3px 9px;position:absolute;border-radius:4px;margin-top:-6px;background:#000;color:#fff;animation:_1tIZttmhLdrIGrB-6VvZcT .5s step-end;z-index:100;white-space:pre-wrap}._3uK2I0hi3JFTKnMUFHD2Pd:after,.HQ2VJViRjokXpRbJzPvvc:after{content:"";position:absolute;top:100%;left:calc(50% - 4px - var(--infoTextTooltip-overflow-left));width:0;height:0;border-top:3px solid #000;border-left:4px solid transparent;border-right:4px solid transparent}._3uK2I0hi3JFTKnMUFHD2Pd{margin-top:6px}._3uK2I0hi3JFTKnMUFHD2Pd:after{border-bottom:3px solid #000;border-top:none;bottom:100%;top:auto} Was it a 3 in collections or treatment? b. Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: Sludge Digestion & Solids Handling: And what online studies did you use? c. increase mixing What is the solids treatment method that uses a chemicals and mixes the recycled flow with the process residual flow in a reactor? Disinfection: Process wastewater can Mr Jose The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. I found a lot of the 3 questions were around anaerobic digestion so I focused a lot on that and it helped me pass. what type of waste solids would most likely be sent to a rendering reclamation? -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. The solids treatment method usually dewaters solids by mixing them with a bulking agent and then waiting for biological stabilization to occur? when one liquid is dissolved in another liquid it is called. d. have a density significantly greater than water, contain 20-25% nonvolatile inorganic matter. Sludge Digestion & Solids Handling: The most common pathogen identified in waterborne disease outbreaks in the United States is_______, Water and Wastewater Microbiology" d. once every other day, Sludge Digestion & Solids Handling: To see these classes - CLICK HERE. Maintenance: How often should the oil in the chain casing be changed? The purpose of the treatment is to change the biological composition or the characteristics of the waste so that it Wastewater can be formed from domestic, industrial, agricultural, commercial activities or any combination of these. That may seem obvious but, too many people take the certification exam with little or no preparation. IX. d. hydrogen sulfide. Surface loading and detention time is a clarifier are directly related to: Sedimentation and Flotation: b. bleach d. preaeration. a. clarifier Activated Sludge Module 1 . If is not recommended to start up trickling filters in the _____(season) because bacteria are most ofter dormant at this time, Trickling Filters: 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. Sludge Digestion & Solids Handling: Wide, and 14 ft. 0000001315 00000 n _____? The least desirable control method for an anaerobic digester is the use of digester____ 4 feet deep 8 feet deep 3 feet wide 7) A wet well is 9 feet deep by 21 feet in diameter. b. vacuum filters Which one of the following methods would not be used to feed DRY chemicals? How do you calibrate a chemical feed pump? a. flush out distributor arms Verified questions. 3 stages . Humus sludge is biomass from, Trickling Filters: What is the odor detection limit of chlorine gas? Basic Chemistry: 100:2:1 This 5 question practice test is a demo of the full, 100 question, practice test available to members. Approx. 10 PPM. What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? I was successful writing my level III Water Distribution but it too had a lot of questions about water treatment, cross connection control, GIS systems, blueprints, dosages etc. Effluent Disposal: If the level falls in 10.3 min. $32 c. $36 d. $42.50 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 To go to the Class 2 & 3 Study Guide Click on above tab. b. twice per day Always pour the acid into the water. Water Distribution Certification practice tests, flashcards, study guides, and more. Maintenance: The demo is available to both certification programs and trainers to help prepare individuals for taking a computerized exam. What does the wastewater industry call sludge that is only partially digested? Good luck. ._2Gt13AX94UlLxkluAMsZqP{background-position:50%;background-repeat:no-repeat;background-size:contain;position:relative;display:inline-block} >> d. scum, Residual Solids Management: they prevent the cover from scraping the sidewall. Draft tube propeller mixers are subject to corrosion from____ What do ballast blocks provide in anaerobic digesters? A pond that contains algae and requires the use of compressor is classified as, Waste Treatment Ponds: Water and Wastewater Microbiology" activated sludge in an aeration tank b. reduce turbulence The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: The wastewater operator certification program is a mandatory program. Chlorine gas has a specific gravity of, Rocks/Screens/Comminutors & Grit Removal: At what concentration level should dissolved oxygen be maintained during the initial start up of a oxidation ditch? -high surface turbulence. negative pole of an electrolytic cell or system, Unless water cooled, the operating temperature of a mechanical seal in a pump should never exceed. During the exam, . d. organic toxicants, Activated Sludge: they prevent foaming in the annular space. 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. b. decanter Classes will Start September 7, 2021 and meet twice per week (Tues & Thurs) for six weeks, ending on October 14, 2021. c. vacuum filters What is "the" major factor in predicting the performance of wastewater clarifiers? Press J to jump to the feed. 2014. Monitor electrical equipment E.coli Test Operate safety equipment . b. primary clarification Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. The allowable voltage above or below the value stamped on a motor's nameplates is_____%, Maintenance: I just challenged the Water Treatment level 1 exam this Monday and noticed there were questions regarding distribution on it as well. d. DO. Calculate the BOD given the information: Initial DO: 8.3. how often should the thermal valves be dismantled for service? Disinfection: a. heavy metals High suspended solids and BOD are most probably associated with which type of organisms? This solids treatment method maximizes the reduction of moisture and solids is called_______, Wastewater Solids Processing: V. WHAT OPERATORS NEED TO KNOW 3-9 . At what depth should samples be collected from a waste pond? The next Stage of treatment is the Secondary Treatment, or Biological. Water and Wastewater Courses For Operator Certification. These practice questions and answers are brought to you free of charge by RoyCEU.com. Cram has partnered with the National Tutoring Association, Conventional Wastewater Treatment Case Study, Lab Report: Phalyco-Chemical Characteristics Of Chemical Acid, How Does Hypochlorous Acid Affect A Swimming Pool. a. high sludge production The most common flow-measure device for wastewater is a_____, Wastewater Treatment Facilities: the floating cover on an anaerobic should be inspected how often? a. step aeration How often should the liquid level be checked on a digester to prevent overfilling? within 1 inch from the top. Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? se&{1k">N0{5yur-;5Y5#[ !q& kH'U!p_,JjrDGM&tv.~Qsn,3u}L> b)>c^\!rA[6GOE;5N8&6\ciu2k What modified activated sludge process does not require primary treatment? How often should the mainshaft bearings be greased in a rotating biological contactor unit? If the sewer rate is $25 for the first 500ft and all wastewater generated over that amount is billed at the rate of $2.50 per 100ft3, how much would a customer generating 1200ft2 of wastewater be billed? (3) reddish brown, Activated Sludge: If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? c. O3 c. volatile-acid-alkalinity ratio How often should the motor bearings be greased in a rotating biological contactor unit? My tests are based off of ABC and Sacramento too. The most common imbalance in the operation of an anaerobic sludge digester is, Sludge Digestion & Solids Handling: These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. Sludge Digestion & Solids Handling: Activated Sludge: 1. no one is perfect and as long as you make progress, i'd be happy with the effort. What should be the color of an oxidation ditch that is working properly? Collection Class 3; Collection Class 4 - most advanced level Small wastewater system operators oversee wastewater systems serving fewer than 3,300 persons. (time of day), Waste Treatment Ponds: Phone (800) 666-0206. Hence you can not start it again. . You have already completed the quiz before. Edwardsville, IL 62026-1075 (618) 650-2030 . You must sign in or sign up to start the quiz. Non -sewage: This is discharged by manufacturing processes and commercial enterprises. The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. Each question has been validated through a process of panel review. d. compost. 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. Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. 0000001026 00000 n The passing grade is 70%. 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