Wastewater is removed Study guides, Class notes & Summaries

Texas Wastewater Class A Exam Questions With 100% Correct Answers Seeding of BOD samples is necessary when samples - answer(All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - answerSummer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume o...

Dispersal Zone: correct answers Dispersal Zone: dimensional volume of insitu soil that receives wastewater for treatment or distributes final effluent for disposal Horizontal reference point correct answers Horizontal reference point: Stationary identifiable point to which horizontal dimensions can be related POWTS dispersal component: correct answers POWTS dispersal component: device or method that is intended to promote the assimilation of treated wastewater by the environment TSS's:...

What removes Total Suspended Solids from a sample (TSS) filtration What chapter of the Texas Water Code gives T C E Q authority to control discharges in Texas. Chapter 26 Inorganic solids include sand, grit and minerals Organic solids include organic materials from plants, animals or humans A good plant influent pH is about 7.2 A simple method for indicating when to waste sludge is 30 minute settling test What is the expected organic loading of a s...

Wastewater License Exam Questions With Verified Answers the mechanism used to remove dewatered sludge from the belt of a belt filter press is commonly referred to as a: - answerdoctor blade over a period of time, ultraviolet lights lose their intensity and must be replaced (T?F) - answerTRUE which of the following statements is true regarding ultraviolet light disinfection systems? - answerregular cleaning of light tubes is necessary to maintain optimal performance. uv light leaves no ha...

Wastewater Test Questions and Answers 2024/2025 with complete solution what is the reason for Wastewater to contain large amounts of sand gravel and grit storm events combined Wastewater is defined as sanitary Wastewater and stormwater runoff in general the solid content of Wastewater is about .1% what is the percentage of suspended solids in the total amount of solids 30% the percentage of dissolved solids in the amount of total solids is about 70% which type of organisms would m...

Wastewater B Test Exam Questions And Answers Percent of volatile solids normally in sludge - ANS 70-80% D.O. levels in a primary clarifier - ANS 0.5-1.0 MG/L Why are precautionary measures needed around an aeration basin? - ANS undertow and turbulence O.S.H.A. approved trench - ANS narrow excavation in which the depth is greater than the width; the width must be less than 15 feet What causes bulking? - ANS 1. Excessive hydraulic loading, 2. Solids not promptly re...

The name of the State Agency responsible for enforcing pollution control laws in Texas is – a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission 2. The term pathogenic means – a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacteria e. Capable of Causing Disease 3. The minimum separation between sewer lines and potable water lin...

Floatable solids are easy to measure. True or False? False A well operated digester normally receives sludge at about __________% volatile solid and reduces it to about ________________% volatile solids. 70-75%, 25-30% According to OSHA, which of the following oxygen in air concentration is the lowest safe concentration for humans to breathe in order to avoid the hazard of oxygen deficiency? 19.5% oxygen The population equivalent factor for BOD is 0.17 lb/day/BOD/person W...

Two Categories of Water Contamination - point and non-point source Accidental Discharge must notify TCEQ within - 24 hours Fresh Wastewater is usually - dishwasher gray with slight odor Septic Wastewater is usually - Dark with a disagreeable odor PH scale ranges from - 0-14 BOD stands for - Biochemical Oxygen Demand Primary causes of stoppage are - roots and grease Minimum velocity to keep solids in suspension - 2ft per sec Water velocity in a Grit chamber is - 1 ft per s...

ASREB Exam Questions with 100% Correct Solutions Salesperson is working for a principal, but the salesperson exceeds authority in agreement. Principal does nothing to correct the actions, and the public is led to believe the actions were okay. Agency? - Correct Answer ️️ -Estoppel Amount stated in a purchase contract in case the buyer breaches is called: - Correct Answer ️️ -Liquidated In a sublease with a positive leasehold who benefits from excess rent? - Correct Answer ️️ -...