Term
|
Definition
| Doesn't mix with the rest of the tank |
|
|
Term
|
Definition
| No Short circuiting, no plug flow |
|
|
Term
| Disadvantages of complete mix: |
|
Definition
| Toxic loads effect the entire basin |
|
|
Term
| In the luxury uptake process, ADsorption.(release) happens in the .. |
|
Definition
| anaerobic tank. PAO’s pick up the food and bring it to the aerobic tank. |
|
|
Term
| In the luxury uptake process, ABsorption (take in, consume) happens..... |
|
Definition
| in the aerobic tank. the PAO’s consume the food they picked up. |
|
|
Term
| To adjust the DO in the oxidation ditch.. |
|
Definition
| raise or lower the rotors |
|
|
Term
| Advantages of extended air: |
|
Definition
| higher sludge age, low wasting, endogenous respiration |
|
|
Term
| A Disadvantage of extended air is __________________________. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| When the RAS flow is increased, the RAS/WAS concentration ________________because it doesn't have enough detention time to thicken. |
|
Definition
|
|
Term
| Young Sludge is also called __________________. |
|
Definition
|
|
Term
|
Definition
| Under cooked. Hasn't been cycled through the plant long enough. |
|
|
Term
|
Definition
Over cooked.
Has cycled through the plant for a long time. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| If the Three amigos are high, |
|
Definition
| The 3 M&M's will be low and vise versa |
|
|
Term
| Filamentous Bulking will produce a __________ Supernate. |
|
Definition
|
|
Term
| Classic Sludge Bulking will produce a ________ Supernate |
|
Definition
|
|
Term
| over oxidized is essentially... |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| pounds of food per day to one pound of bugs. |
|
|
Term
|
Definition
| Uniform...the same throughout. |
|
|
Term
| When the OUR (oxygen uptake rate) Decreases.... |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| Filamentous will flourish if you have.... |
|
Definition
| a low F/M, low D.O, Low PH, F.O.G, nutrient imbalance, high organic load |
|
|
Term
| ________% of monthly fecals must be non detect. Only one can be over 25cfu/100mls. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Organisms require _____________________________________ for reproduction. |
|
Definition
| Carbon, Nitrogen, phosphorus, iron |
|
|
Term
| The Nutrient ratio is __:__:__:___ |
|
Definition
100 :5 :1 :0.5
CBOD: Nitrogen: Phosporus: Iron |
|
|
Term
| A low Ph under _____ can attract filamentous |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| Aerobic organisms (aerobes) need.. |
|
Definition
|
|
Term
| The Nitrifiers, Nitrosomonas and nitrobacter are Strictly ___________ and need Free D.O. |
|
Definition
|
|
Term
| The Three respiratory conditions are: |
|
Definition
| Anoxic, Anaerobic, Aerobic |
|
|
Term
| Anoxic means ___________ is present and Nitrite and Nitrate are present. |
|
Definition
|
|
Term
| Total Nitrogen (TN) and total Phosphorus (TP) .... |
|
Definition
|
|
Term
|
Definition
| No free D.O is present, No NO2/NO3 present |
|
|
Term
| Methane formers (anaerobes) are completely.... |
|
Definition
|
|
Term
| Under anoxic condtions, the bugs get their oxygen from _____________________. |
|
Definition
|
|
Term
| ___________ Bacteria can thrive under anoxic, anaerobic and aerobic conditions. |
|
Definition
|
|
Term
| _____________ can utilize o2,NO3,SO4,CO2. |
|
Definition
|
|
Term
| Facultative bacteria are also known as... |
|
Definition
|
|
Term
| Autotrophic bacteria are ____________. Their energy source is ammonia. Their Carbon source is Alkalinty and carbon Dioxide. |
|
Definition
|
|
Term
| ____________________ get their carbon AND energy from organic matter. |
|
Definition
|
|
Term
| Nitrifiers are Strict _________. They create acid and consume ____________. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Nitrification produces.... |
|
Definition
|
|
Term
| If you have low Influent alkalinity, You may need to add ______. |
|
Definition
|
|
Term
| Autotrophic bacteria are also called... |
|
Definition
| Nitrifiers (Nitrosomonas, Nitrobactor) |
|
|
Term
| When the nitrosomonas convert ammonia to nitrite, the _______________ Convert the Nitrite to Nitrate. |
|
Definition
|
|
Term
| In an ___________ environment, the D.O is below 0.2mg/l. |
|
Definition
|
|
Term
| It takes ______ of Alkalinity for every 1lb of ammonia oxidized. |
|
Definition
|
|
Term
| It requires _______ of oxygen to oxidize 1lb of ammonia to nitrate. |
|
Definition
|
|
Term
| In order to denitrify, you need 5 things: |
|
Definition
| Anoxic environment, carbon, The proper PH temp and SRT. |
|
|
Term
|
Definition
| When the nitrification and denitrification process cant complete. |
|
|
Term
| During Nitrite Lock the CL2 is reduced to ________ and ______. |
|
Definition
| Chloride and Hydronium Ion |
|
|
Term
| You wont have a CL2 residual if you have..... |
|
Definition
|
|
Term
| The organisms that remove phosphorus are called.... |
|
Definition
|
|
Term
|
Definition
| Phosphate Accumulating organisms |
|
|
Term
| PAO's release phosphorus in the ____________ zone. |
|
Definition
|
|
Term
| PAO's Consume phosporus in the __________ zone. |
|
Definition
|
|
Term
| Phosphorus accelerates ______________. |
|
Definition
|
|
Term
| If you have D.O or nitrate, its not __________. |
|
Definition
|
|
Term
| PAO's can take up excess ____________ in the aerobic zone. |
|
Definition
|
|
Term
| The purpose of having a re aeration tank before the clarifier is to..... |
|
Definition
| release bound gases and to aid in settling. |
|
|
Term
| You need to ___________ the RAS because the PAO's would try to use it for Energy instead of releasing phosphorus. |
|
Definition
|
|
Term
| Ammonia Stripping is _______ dependent. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| At a PH of ___________, almost all ammonium is converted to dissolved ammonia gas (nh3). |
|
Definition
|
|
Term
| The preferred Ph for ammonia stripping is ______. |
|
Definition
|
|
Term
| To raise the PH, use ____________. |
|
Definition
|
|
Term
| Pitfalls to ammonia stripping are: |
|
Definition
| Limestone buildup, clogged pumps and media. |
|
|
Term
| To clean Limestone buildup, use _______ or hot water. |
|
Definition
|
|
Term
| After you treat the wastewater in ammonia stripping, you have to _______ the PH. |
|
Definition
|
|
Term
| Chlorine reacts with Ferrous iron, and nitrite BEFORE any ________ occurs. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Ammonia and CL2 make _________________________. |
|
Definition
|
|
Term
| When you reach___________ , you will most likely have a Low Tss, Low BOD, Low CL2 demand. |
|
Definition
|
|
Term
| It takes ______ of CL2 to remove 1.0 mg/l of Ammonia. |
|
Definition
|
|
Term
| Ammonium Sulfate (Alum) is used for ______________________. |
|
Definition
|
|
Term
| Alum is an acid and has a _____ PH. |
|
Definition
|
|
Term
| ___________ is sticky, slippery and corrodes and clogs pipes. |
|
Definition
|
|
Term
| When you use _____, you have to keep your PH above 11.0. |
|
Definition
|
|
Term
| ________is more commonly used over Alum because of the cost. |
|
Definition
|
|
Term
| Lime produces _________ sludge than alum. |
|
Definition
|
|
Term
Lime __________ the PH.
Alum ___________ the PH. |
|
Definition
|
|
Term
| Primary clarifiers remove _____% solids. |
|
Definition
|
|
Term
| Secondary Clarifiers remove _______% solids. |
|
Definition
|
|
Term
| Filters are basically just __________. |
|
Definition
|
|
Term
| A TSS Below ____ is required for high level disinfection. |
|
Definition
|
|
Term
| TSS trapped in the filter media is called _________________. |
|
Definition
|
|
Term
| ____________ is determined by measuring the pressure above and below the media. |
|
Definition
|
|
Term
| With ____________ you must have a low Effluent TSS. |
|
Definition
|
|
Term
| you can only draw off ______lbs a day on a 150lb CL2 gas cylinder. |
|
Definition
|
|
Term
| Disinfection is ___________ at higher temps. |
|
Definition
|
|
Term
| A CL2 residual of 0.5 mg/l after 15 minutes contact time at peak hourly flow is required for _________ disinfection. |
|
Definition
|
|
Term
| A Cl2 residual of 1.0 mg/l after 15 minutes contact time at peak hourly flow is required for _______ disinfection. |
|
Definition
|
|
Term
| A _______________ ______________ is used to test Low Cl2 residuals. |
|
Definition
|
|
Term
| For basic disinfection, any one sample should not exceed ______ colonies per 100 ml sample. |
|
Definition
|
|
Term
| For High level disinfection, any one sample should not exceed _______ colonies per 100 ml sample. |
|
Definition
|
|
Term
| Nitrate has Zero __________. |
|
Definition
|
|
Term
|
Definition
| has Received secondary treatment and basic disinfection. |
|
|
Term
|
Definition
| Delibrate application of reclaim water example: Golf course. |
|
|
Term
| _______________________ are energy efficent, cost affective, create less sludge for disposal. |
|
Definition
|
|
Term
| Anaerobic digestion is a 2 step process: |
|
Definition
| Acid Formation and methane formation |
|
|
Term
| Primary clarifiers do not contain.... |
|
Definition
| mixed liquor and its contents come straight from headworks. |
|
|
Term
| Primary digesters are mixed _____________. |
|
Definition
|
|
Term
| ___________________ are like primary clarifiers but more slopped. The rake moves slow to create a thicker sludge and release gas from the blanket. |
|
Definition
|
|
Term
| _______________________ are not mixed to allow settling. |
|
Definition
| Secondary Anaerobic digesters |
|
|
Term
| If digester covers get stuck, _____________________. |
|
Definition
| apply degreaser and hose down through inspection port. |
|
|
Term
| You heat an Anaerobic digester to: |
|
Definition
| Maintain growth rate, increase digestion, improve dewatering. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| The most common temp of an anaerobic digester is ______. |
|
Definition
|
|
Term
| Struvite is formed from _____________________________. |
|
Definition
| Magnesium ammonium phosphate. |
|
|
Term
| For __________, remove phosphorus with iron salts, ferric chloride and ferrous chloride. |
|
Definition
|
|
Term
| Anaerobic digester Supernate is high in __________________________________. |
|
Definition
|
|
Term
| A toxic load in an anaerobic digester smells like __________________. |
|
Definition
|
|
Term
| Never change Anaerobic digester temp by more than __________ degree a day. |
|
Definition
|
|
Term
| Digester gas is 70% ________ and 30% carbon Dioxide. |
|
Definition
|
|
Term
| Biogas and oxygen can ___________ easily. |
|
Definition
|
|
Term
| VA/ALK is the key to ____________________ operation. |
|
Definition
|
|
Term
| Alkalinty is produced by ______ _______________. |
|
Definition
|
|
Term
| A good VA/Alk ratio is _______ |
|
Definition
|
|
Term
| A VA/Alk ratio of 0.8 : 1 will cause a ____ in the PH. |
|
Definition
|
|
Term
| Lime can combine with ____ and cause a dangerous vacuum. |
|
Definition
|
|
Term
| The BOD Test is_________________ |
|
Definition
| 5 days at 20 degrees celcius |
|
|
Term
| One cubic foot of water @ 4 degrees Celsius weighs_________. |
|
Definition
|
|
Term
| __________ burns in a furnace. |
|
Definition
|
|
Term
| For grit removal, velocity should be _____. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| If you have high H2S leaving a wet scrubber, _____________ the tower PH. |
|
Definition
|
|
Term
|
Definition
| When nitrates are converted to nitrogen gas |
|
|
Term
|
Definition
| the pounds of BOD entering an aeration tank |
|
|
Term
| The main difference in Conventional activated sludge and advanced treatment is: |
|
Definition
| Nitrogen and phosphorus removal |
|
|
Term
| Sludge is removed from a primary clarifier ___________ times a day. |
|
Definition
|
|
Term
| small gas bubbles rising in clarifier: |
|
Definition
|
|
Term
| Large gas bubbles rising in clarifier: |
|
Definition
|
|
Term
| To increase contact time in the Aeration tank, ____________ the RAS. |
|
Definition
|
|
Term
| __________ is a common problem with trickling filters. |
|
Definition
|
|
Term
| Luxury phosphorus uptake occurs in the _______________ zone of a bardenpho plant. |
|
Definition
|
|
Term
| Nitrosomonas are responsible for: |
|
Definition
|
|
Term
| Nitrobacters are responsible for: |
|
Definition
|
|
Term
| Heterotrophs are responsible for: |
|
Definition
| CBOD removal and denitrification |
|
|
Term
| If you have high NH3 in your aeration tank,________________ the air |
|
Definition
|
|
Term
| Liquid effluent from a centerfuge is called _________. |
|
Definition
|
|
Term
| Denitrification happens in the ________ zone. |
|
Definition
|
|
Term
| Water leaving a belt press is called_________. |
|
Definition
|
|
Term
| if to much polymer is added to a belt press, ___________________. |
|
Definition
|
|
Term
| liquid CL2 is _________ heavier than air. |
|
Definition
|
|
Term
| gas CL2 is _________ heavier than air. |
|
Definition
|
|
Term
| Free CL2 is obtained after ____________. |
|
Definition
|
|
Term
| CL2 plus ammonia creates _____________. |
|
Definition
|
|
Term
| To dechlorinate, use ______________. |
|
Definition
|
|
Term
| for every one pound of bugs, you need ___ pounds of food. |
|
Definition
|
|
Term
|
Definition
| Very small finely divided solids |
|
|
Term
|
Definition
|
|
Term
| the best method to remove primary sludge is __________. |
|
Definition
| several times throughout the day. |
|
|
Term
| if Sloughing from the trickling filter creates problems, add _______. |
|
Definition
|
|
Term
| you will have the highest D.O in an unaerated stabilization pond around: |
|
Definition
|
|
Term
| you will have the lowest D.O in an unaerated stabilization pond around: |
|
Definition
|
|
Term
| ___________ of alkalinity is put back into the MLSS for each pound of nitrate used as a source of oxygen during denitrification. |
|
Definition
|
|
Term
| The overall concept of a gravity thickener is the thinner the sludge you put in, the __________ you take out. |
|
Definition
|
|
Term
| The secondary digester in a 2 stage anaerobic digestion system is not __________. |
|
Definition
|
|
Term
|
Definition
1)plants must be fenced and secured.
2) disinfection requirements |
|
|
Term
|
Definition
| Reports are due on the 28th of the following month |
|
|
Term
|
Definition
Report problems within 24 hours.
Maintain logbook for three months.
License suspension/revocation |
|
|
Term
|
Definition
Reuse/re-claim land application.
Piping color purple.
75% monthly fecal coliform must be non detect |
|
|
Term
|
Definition
permit renewals.
Keep three years of records.
On-site testing permitted DO, pH, temp, Cl2 |
|
|
Term
|
Definition
biosolids/residuals
Vector reduction -nematode eggs.
Greater than 38% volatiles reduction.
PH greater than 5.5 in soil |
|
|
Term
|
Definition
|
|
Term
| At a PH below _______ al sulfide is present in the gaseous H2S form |
|
Definition
|
|
Term
| an advantage of using pure oxygen in activated sludge systems is __________. |
|
Definition
| They use smaller aeration tanks |
|
|
Term
| The luxury uptake of phosphorus is called “luxury” uptake because _________. |
|
Definition
| The organisms take up more phosphorus than they actually need. |
|
|
Term
| you use jar tests for _________. |
|
Definition
|
|
Term
| A reduction of alkalinity across secondary treatment processes indicates __________. |
|
Definition
| nitrification is occurring. |
|
|
Term
| and a well operated anaerobic digester the alkalinity should be _________. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| sulfide exists as 100% ___________ at a Ph below 5. |
|
Definition
|
|
Term
| In a BOD test, when the effluent BOD is higher than the effluent solids, ___________ is happening |
|
Definition
|
|
Term
|
Definition
| the rate of mass flow that passes through a membrane filter |
|
|
Term
| _________ is the most frequent problem associated with filter belt presses. |
|
Definition
|
|
Term
| The 5 stage bardenpho process is used to remove ______________. |
|
Definition
|
|
Term
| __________ affect methane fermentation in the anaerobic digestion process. |
|
Definition
|
|
Term
| The ORP ______ in the final effluent when the ammonia in the effluent increases. |
|
Definition
|
|
Term
| a high rate aeration process is typically ______. |
|
Definition
|
|
Term
| increasing the RAS _______ the contact time in the aeration tank. |
|
Definition
|
|
Term
| a class C fire extinguisher is used for _________ ________. |
|
Definition
|
|
Term
| the function of wear rings on a centrifugal pump are to ________. |
|
Definition
| prevent internal liquid leakage. |
|
|
Term
| modified aerator is also known as _________. |
|
Definition
|
|
Term
| Struvite can be controlled by the precipitation of phosphorus using _________. |
|
Definition
| Iron salts (ferrous sulfate) |
|
|
Term
| overfeeding an anaerobic digester can cause ______. |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| Sodium hydroxide NAOH is used in a wet scrubber to treat high levels of _______. |
|
Definition
|
|
Term
| During denitrification, the Alkalinity _______. |
|
Definition
|
|
Term
| ___________ If you have Streaks of sludge on a gravity belt thickener. |
|
Definition
| clean the wash box nozzles |
|
|
Term
| Every sample bottle must have _________. |
|
Definition
| where collected, date, time, temp, initials. |
|
|
Term
|
Definition
|
|
Term
| organisms can better utilize nutrients in the ________ form. |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Ammonia N, Nitrate N and Nitrite N |
|
|
Term
| A rising acid/alk ratio in an anerobic digester is the result of ______. |
|
Definition
|
|
Term
| when the belt speed of a gravity belt thickener is _______, the dewatering time is increases and allows more water to be removed. which increases the cake. |
|
Definition
|
|
Term
| The PH scale is 0-14. 0-6.9 is acidic, 7.0 is neutral, 7.1 to 14 is ______ . |
|
Definition
|
|
Term
| Vector attraction reduction for class B lime stabilization is done by ___________ the PH to 12.00 for 2 hours, then after 22 hours it shouldn’t be less than 11.5. |
|
Definition
|
|
Term
| A reciprocating pump is also known as a _________. |
|
Definition
| piston pump. which is also known as. positive displacement pump |
|
|
