The document discusses the treatment of solids generated during wastewater treatment. Solids are produced during preliminary treatment like screening and grit removal, as well as primary and secondary treatment in the forms of scum and sludge. The solids treatment process includes thickening the sludge to reduce volume, stabilizing through processes like digestion to reduce pathogens, and dewatering to further reduce moisture content before final disposal or beneficial reuse.
Industries always undergo the challenge to effectively treat wastewater as it is necessary to prevent water pollution. As the regulations and compliance strictly prohibit discharge of harmful pollutants to the environment, it becomes essential to treat wastewater.
Hey Guys.
This PPT will clear doubts about Wastewater Story. Please Go Through It. And Download and view this in slide shoe, with transitions and animations
Industries always undergo the challenge to effectively treat wastewater as it is necessary to prevent water pollution. As the regulations and compliance strictly prohibit discharge of harmful pollutants to the environment, it becomes essential to treat wastewater.
Hey Guys.
This PPT will clear doubts about Wastewater Story. Please Go Through It. And Download and view this in slide shoe, with transitions and animations
Solid waste disposal and mangrove destructionsana sana
its describes what is waste type of wastes and solid wastes and different type of solid wastes and its disposal at last it describes mangrove destruction and its effects on environment
ppt includes what is waste ?, basel convention, definition, kinds of waste, classification of waste, sources of waste, impact of waste, waste herarchy, graphs, catagories of waste disposal, impacts of waste on health, impact of waste on environment
waste water management, water conservation, managing usage of water, environmental issue, water pollution and its types, ground water pollution, depleting oxygen in water, suspended matter, chemical water pollution, marine dumping, sewage water, marine dumping, nuclear waste
In today's live there is more number of wastes are produced and they are not properly disposed due to improper disposal many pollution were made and the all living organisms were affected.
Solid waste disposal and mangrove destructionsana sana
its describes what is waste type of wastes and solid wastes and different type of solid wastes and its disposal at last it describes mangrove destruction and its effects on environment
ppt includes what is waste ?, basel convention, definition, kinds of waste, classification of waste, sources of waste, impact of waste, waste herarchy, graphs, catagories of waste disposal, impacts of waste on health, impact of waste on environment
waste water management, water conservation, managing usage of water, environmental issue, water pollution and its types, ground water pollution, depleting oxygen in water, suspended matter, chemical water pollution, marine dumping, sewage water, marine dumping, nuclear waste
In today's live there is more number of wastes are produced and they are not properly disposed due to improper disposal many pollution were made and the all living organisms were affected.
Effluent treatment Plant covers the mechanisms and processes used to treat such waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re-use.
Zero liquid discharge (ZLD) is a wastewater treatment process in which all wastewater generated from a plant or facility is purified and recycled back into the production process, and no discharge of wastewater is sent to the environment. This is achieved by using a combination of various technologies, such as reverse osmosis, evaporation, crystallization, and others, to remove contaminants from the wastewater and recover the treated water and solids for reuse or disposal. ZLD is an effective way to reduce water usage and minimize the environmental impact of wastewater discharges, particularly in industries such as power generation, chemical manufacturing, and textile production, which generate large volumes of wastewater with high concentrations of pollutants.
Zero Liquid Discharge Plant Technology
Zero liquid discharge (ZLD) technology typically involves a combination of several treatment processes, depending on the composition of the wastewater and the desired level of treatment. Here are some of the common steps involved in a ZLD plant:
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Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
3. Solids from Preliminary Treatment
Screening Grit Removal
Solids
removed from
preliminary
treatment
include:
No nutrients
or organic
content
Are disposed
in a landfill
Rags
Tree
limbs
Grit
Plastics
Preliminary Treatment
4. Solids From Primary and Secondary Treatment
Needs
stabilization
Rich in
nutrients
and
substantial
organic
content
Contains
pathogens
Prevent
public
nuisance/
health
hazard
Will decay
causing
odors
Primary Treatment Secondary Treatment
Scum
Sludge Sludge
SOLIDS
Disposal
Beneficial
reuse
5. Solids From Primary and Secondary Treatment
Primary Treatment Secondary Treatment
Sludge Sludge
1-5%
solids
0.5%
solids
>95%
water
>99%
water
SLUDGE STABILIZATION PROCESS
Sludge
Thickening
Sludge
Thickening
6. Sludge Thickening
Primary Treatment Secondary Treatment
Sludge Sludge
Sludge
Thickening
Sludge
ThickeningGravity Thickener
Dissolved Air Floatation
Thickener (DAFT)
Removes
excess
water
Reduces
volume of
sludge to
be
stabilized
Reduces
treatment
costs
Optional
Suitable for
primary sludge
Suitable for
secondary
sludge
Thickening produces sludge
with <10% solids content
7. Digestion
Sludge Stabilization
Produces
solids that are
safe for final
use or
disposal
Final solids use or disposal options
Condition/Fertilize
Soil
Surface
disposal
Drying or
incineration
Land
application
Utilize the carbon
content
Regulated
under CFR Part
503 regs
Anaerobic
Aerobic
Alkaline
Stabilization
Composting
Long Term
Storage in
Lagoons
Thermal
Processes
Biosolids: Stabilized
sludge which meet
regulatory standards for
beneficial reuse
Most
Common
Sludge Stabilization Processes
8. Solids Dewatering
Digestion
produces
solids with
<5% solids
Not practical
to haul off-site
in this state
Sludge is
therefore
dewatered
Belt Filter Press Centrifuge
Most common methods
Makes
sludge
easier to
handle
Reduces
hauling
costs
Physical
process
Increases
solids
content to
15 – 30%
9. Solids Treatment Process Summary
Primary Treatment Secondary Treatment
Scum
Sludge
SLUDGE STABILIZATION PROCESS
Sludge
Thickening
Screening Grit Removal
Preliminary Treatment
Sludge
Thickening
Sludge
SOLIDS DEWATERING PROCESS
Disposal
or
Beneficial
Reuse
Landfill
Influent
Wastewater
Treated
Wastewater
Solids
