Designing Sustainable Water Treatment Plants

Name: Designing Sustainable Water Treatment Plants
Rating: 4.5 (4 reviews)

Mastering Wastewater and Water Treatment Plant Design: From Concepts to Practical Application

Created bySanwal Jahan

Last updated 2/2024

English

What you'll learn

Fundamental Concepts of Wastewater and Water Treatment
Screening and Grit Chamber Design
Primary Treatment Plant Design
Trickling Filters and Slow Sand Filters Design
Waste Stabilization Ponds Design
Rapid Sand Filter, Sedimentation Tank, and Sludge Design

Course content

6 sections • 29 lectures • 7h 2m total length

Introduction to Environmental Engineering22:27
Explore the fundamentals of wastewater treatment plant design within environmental engineering, covering source types, treatment levels, and key processes from screening to sludge disposal.
Introduction to Wastewater Treatments20:40
Explore chemical and biological wastewater characteristics, including chemical oxygen demand, total organic carbon, total organic nitrogen, phosphorus forms, heavy metals, and the design of primary, secondary, and tertiary treatment plants.
Screening & Grit Chamber Theory13:45
Explore screening and grit chambers in primary treatment, using dual chambers with bypass to remove large floating matter and grit, protecting pumps and preventing clogs.
Design Of Screening Chamber Part a11:46
Designs a screening chamber for wastewater, detailing bar spacing, angle, velocity, and head losses. Calculates q_peak from q_average and outlines a dual-chamber design for a 50,000 population case.
Design Of Screening Chamber Part b11:20
Design screening chambers by calculating width from clear width and bar dimensions, using 21 bars with 0.15 m extremes; separation wall 0.95 m and assess head losses.
Design Of Grit Chamber23:51
Design a grit chamber for a 50,000-person community by calculating peak flow, depth, width, and length, using 0.2 mm particle size and a 0.3 m/s flow velocity.
Primary Sedimentation Tank Theory14:53
Describe the primary sedimentation tank and its goal to remove 45-70% of total suspended solids. Covers 25-40% of biochemical oxygen demand, four zones, and a baffle that ensures uniform flow.
Design Of Primary Sedimentation Tank18:01
Design circular primary sedimentation tank for a 46,900-person community, using 20 m per day surface overflow, 3-hour detention, and calculations for one unit to determine diameter, area, and depth.
Detention Time Numerical3:50
Calculate detention time for a water treatment tank by converting flow to cubic meters per hour and computing volume from area and depth; the example yields 3.04 hours.

Trickling Filters Theory18:48
Explore the theory of trickling filters and UASB reactors for wastewater treatment, including media types, aerobic and anaerobic zones, design criteria, and advantages and drawbacks.
Design Of Trickling Filter Plant18:07
Design a high-rate trickling filter plant for a population of 56,775. Influent 150 mg/L, effluent 20 mg/L; diameter 46.78 m, depth 5 m, recirculation ratio 1, hydraulic loading 13.2 m/day.

Sludge Treatment Theory12:29
Explore sludge treatment and disposal, including thickening and dewatering. Study digestion options: aerobic and anaerobic with methane, and primary, secondary, and mixed sludge.
Sludge Design Problem Part a12:18
Calculate sludge volume from solids and fractions with organic and inorganic gravities, given 10,000 dry solids at 5%, digestion reduces organic solids by 50% and increases total solids by 10%.
Sludge Design Problem Part b5:48
Calculate sludge weight from solids with a 10% solids fraction, compute water and solids volumes using specific gravities, and determine a 68.5% volume reduction after digestion.
Loading Design Problem10:36
Solve a sludge treatment and disposal design problem in a trickling filter plant. Calculate primary and secondary solids loading from 1000 m3/d, applying 60% TSS and 30% BOD removals.

Waste Stabilization Ponds Theory15:07
This lecture explains waste stabilization ponds, detailing anaerobic, facultative, and maturation ponds, their design, advantages for developing countries, and fecal coliform reduction for irrigation use.
Design Of Anaerobic Pond32:53
Design a wastewater stabilization pond system, including anaerobic, aerobic, facultative, and maturation ponds, for a 2036 population and 200 mg/L BOD. Calculate population growth, flows, pond volumes, depths, areas.
Design Of Facultative Pond23:08
Design a facultative pond for domestic sewage, targeting 7–20 days detention, 1.5–2 m depth, and a 1:3 slope, sizing area via surface loading at about 180 kg BOD/ha/day.
Design Of Maturation Pond Part a6:39
Design maturation pond by calculating detention time, volume, and area using four days and a depth of one meter, with surface loading rate and alignment to facultative and aerobic ponds.
Design Of Maturation Pond Part b14:03
Compute k and k2, assess net effluent from aerobic, facultative, and maturation ponds, compare with 1000 MPN/100 ml, and adjust by adding maturation ponds to meet criteria; then determine the area and dimensions.

Water Treatment Plant Theory13:27
Explore coagulation and flocculation to remove negatively charged colloidal particles in water, using coagulants such as alum, ferrous sulfate, or ferric chloride, optimized by jar tests to find best dose.
Coagulation & Flocculation Process13:27
Explore the coagulation and flocculation processes in water treatment, destabilizing negatively charged colloids with coagulants like alum, ferric chloride, and ferrous sulfate, then gentle mixing to form removable flocs.
Principle Of Discrete Settling8:45
Contrast discrete settling and flocculent settling in sedimentation, where discrete settling follows Stokes law for individual particles, while flocculation elevates size and velocity, affecting surface overflow rate.
Disinfection Process5:33
Explore water hardness, temporary and permanent, and learn softening methods, sedimentation, and filtration, leading to disinfection via physical and chemical means, and advanced ultrafiltration and reverse osmosis processes.

Classification of Filters10:14
Learn the filtration process in water treatment, comparing slow sand and rapid sand filters, filter media, backwashing, and pretreatment to reduce turbidity.
Design Of Slow Sand Filter21:21
Design a slow sand filter for a 7,000-person community by calculating q_max from q_avg, then determine diameter using 0.2 metres per hour velocity and specify sand and gravel media.
Design Of Rapid Sand filter Part a14:59
Compute the average and max daily water demand for a 600-person community, then determine the rapid sand filter surface area at a chosen filtration rate and plan media quantities.
Design Of Rapid Sand Filter Part b11:32
Describe the rapid sand filter design, size the overhead tank for backwashing, and compute gravel with 15% extra using surface area, volume, and rate of filtration.
Sedimentation Tank Design12:42
Design a sedimentation tank for 1000 gallons per capita per hour, use a 2-hour detention time, and confirm a rectangular 2:1 design with an appropriate surface overflow rate.

Requirements

No specific prerequisites are required for this course. However, a basic understanding of civil or environmental engineering concepts would be beneficial.

Description

Course Description:

Embark on a transformative journey into the world of wastewater and water treatment plant design with our comprehensive course, "Mastering Wastewater and Water Treatment Plant Design: From Theory to Application." Tailored for undergraduate civil or environmental engineering students, as well as professionals and enthusiasts alike, this course is designed to provide a thorough understanding of key components and processes crucial to effective water management.

Course Highlights:

Introduction to Water Treatment:
- Explore the fundamentals of wastewater and water treatment, understanding the importance of responsible water management in mitigating environmental impact.
Screening and Grit Chamber Design:
- Acquire proficiency in the design of screening and grit chambers, essential for the preliminary removal of large debris and abrasive particles.
Primary Treatment Plant Design:
- Dive into the intricacies of designing primary treatment plants, laying the foundation for subsequent stages by efficiently removing settleable and floatable solids.
Trickling Filters Design Mastery:
- Master the design principles of trickling filters, understanding their crucial role in biological treatment processes and the optimization of pollutant removal.
Slow Sand Filters Design Expertise:
- Develop skills in designing slow sand filters, and exploring the biological and physical processes involved to ensure effective water purification.
Rapid Sand Filter Design Precision:
- Gain proficiency in the design of rapid sand filters, essential for the removal of suspended particles. Explore key design parameters and backwashing procedures.
Sedimentation Tank Design Strategies:
- Understand the principles of sedimentation and optimize the design of sedimentation tanks for efficient solid-liquid separation.
Sludge Treatment Design Skills:
- Delve into the complexities of sludge treatment system design, mastering considerations for thickening, dewatering, digestion, and environmentally responsible disposal.

Who this course is for:

Undergraduate Civil Engineering Students:
Undergraduate Environmental Engineering Students
Public Health Engineer
Waste Water Management Engineer

Designing Sustainable Water Treatment Plants

What you'll learn

Explore related topics

Course content

Waster Water Treatment Plant Design9 lectures • 2hr 21min

Trickling Filters Design2 lectures • 37min

Sludge Treatment Plant4 lectures • 41min

Waste Stabilization Ponds5 lectures • 1hr 32min

Water Treatment Plant Process4 lectures • 41min

Water Treatment Plant Filters5 lectures • 1hr 11min

Requirements

Description

Who this course is for: