Wastewater Plant Tour There Is Gold In Them There Plants
Why Should I Be Interested In Wastewater Treatment? Every municipality has at least one treatment facility. Many manufactures will have treatment or pretreatment operations. Excellent path to get you involved with the Collections Operations, Pre-Treatment Operator, and Industrial Pre-Treatment.
What Is Important For Me To Be Aware Of On A Wastewater Treatment Call? Can be a highly trained individual. Usually will need some sort of an appointment. Cities and Town under 50,000 in population best to start with at the beginning.
What Is Going To Be Presented Today? Visual walk thru the different types of equipment at assorted treatment facilities. Break Down of what products: where, why and how for a wastewater treatment operation. Visual walk thru Lagoon systems, how they work and what problems they may have. Break Down of what products: where, why and how for lagoons. Pre-treatment for manufactures.
Some Times Wastewater Calls Can Be A Little Hazy
We Ask What Is That Do And What Do We Have To Sell Them?
They Are Big, So They Have To Need Some Of Our Products!
Points To Understand Concerning The Plant Operator 1. Operators are licensed by the State & EPA. 2. If they are the licensed operator of the facility they will have gone to classes and have been certified to operator a certain classification of operation. 3. They know their plants.
Points To Know Concerning The Facility 1. If a plant is designed correctly and is not over challenged with either amount of water being treated or load in the water being treated they usually do not need our assistance on the organic digestion side. 2. Maintenance side of the facility is an excellent beginning point. 3. There are certain key areas that we will discuss that can offer you an excellent opportunity to service the account.
Let s Take A Walk
When You Think You Have Seen Everything!
Plant Layout
Each Plant Will Have It s Own Design
It All Starts At The Influent Stage Part of the Head Works
Sewage Being Lifted Into Plant
Raw Sewage Being Lifted Influent Spiral Pumps
Pump Housing Three Screws Lifts Controls for Gate Valves
Lifting Raw Sewage into Plant
Inside The Pump House Problems Here Could Be: Flies Odors Corrosion Products: Flies: 594 Odor Control: 784/894 Rust Control: 103/303
Still At The Head Works
Grit/Sand/Heavy Items
Grit Chamber Area Trash Hopper To Collect Grit Conveyor Belt Moving Grit Problems: Corrosion Odors Moving Parts Products: Corrosion: 103/303 Lubricants: 201/594/894
Grit Area
Large Items Go Here
Scrap Bar Removes Solid From Bar Screen Bar Screen System
Part Of Bar Screen Collection
Part Of Bar Screen Collection
Flies/Odors/Corrosion
Conveyor System Carrying Away Solids From Bar Screen Area
Getting The Sewage Thru The Plant First Stop Dividing The Water Into Equal Amounts
Splitter Box
Splitter Box Flow Grease Build Up Should Not Be Here Grease Build Up Should Not Be Present
Flow Channel
Clarifiers Primary Treatment Light Items Float Heavy Items Sink Skimmer Arm
Clarifiers Why Is Excessive Algae Growth Not Wanted In Wastewater Treatment Operations? Weirs Look For Excessive Algae Growth
Where Is The Water Going? Enters Plant (Head Works) Remove sand and gravel and large items (Grit Chamber or Screen) Move water into plant (Divider Box?) Allow heavy and light items time to be removed (Primary Clarifier)
Two Types Of Clarifiers Primary Secondary
Clarifiers
Primary Clarifier
Excessive Algae Growth On Weirs Algae Algae The excessive algae increases the amount of solids that need to be removed from the water. The problem is when the amount of algae gets to this level, it breaks off into the water and becomes solids that have to be removed.
Rectangle Primary Clarifier Skimmer arms work the length of the pool. They skim the solids that have either floated to top or dropped to bottom.
Skimmer arms moving top of screen to bottom of screen. Notice the solid build up at end.
Another Example & Explanation
Name these parts of a clarifier.
Where is this water going? What problems might a clarifier have that our products could help eliminate?
Aeration Area What purpose does an aeration area serve in a wastewater plant?
Air Injection System Air Bubbles
Diffused Aeration Area What do you look for here?
Emptying The Aeration Area Where is this water going now?
Cleaning Up The Water Trickling Filters Sometimes Are Employed
Trickling Filter Media Area Sprayer Arms Water Being Treated What problems possible here? Ponding/Grease Build Up/Flies
Clarifiers & Aeration Area Which way is the water flowing?
Aerobic Digestion Area What is Aerobic Digestion?
Covered Digesters What is going on here?
Anaerobic Digester Problems/Solutions What is the difference between Aerobic Digester and an Anaerobic Digester?
Final Clarifier Skimmer Arms Why is this called a Final Clarifier?
Gravity Thickeners What is a Gravity Thickener?
Skimmer Arms Working And they said wastewater treatment plants are downhill from everything.
Empty And Clean Clarifier Skimmer Pan Weir Area
How to get as much water out of the sludge as possible? Dewatering Systems
Dewatering Methods
Dewatering Method Frame Press Side View of Frame Press Opened Frame Press
Used Frame Press Off-Line These sections come apart for cleaning Problems: Polymer Build Up Scale Forming Reducing the ability to remove water Products: Polymer: 661/961 Scale: 916
Disassembling A Frame Press If filtering system becomes clogged with scale, polymer, lime, rust it does not perform
Problems/solutions?
Belt Press / Off Line How does this piece of equipment work in a wastewater application?
Scrapper Bars Rollers Belt
Diagram Of A Belt Press Wastewater Sludge
Belt Press Room Belt Problems: Odors Belt Blinding Polymer Spills Polymer Feed and Holding Tank Products: Odors: 894/850 Blinding: 661/961 Spills: 415
Sludge Coming Into Dewatering Process
Problems with a Belt Press/Solutions
Sludge Thickener
This Isn t Chocolate
Where Do The Solids Go? Incinerated Land Application Land Fill
Odor Issue: 894/850 Corrosion Issues: 303 Sludge Drying Beds
Land Application
How Is The Water Purified Before Being Discharged Chlorination (On it s way out of the programs) U.V. Lighting
U. V. Disinfection
Examples Of U.V. Disinfection
Example Of U.V. Disinfection
U.V. Disinfecting Problems: Scale residue on lenses blinds the bulbs Products: 650/916
The effluent eventually makes its way into a stream, river or sea.