settling tank Articles | Environmental XPRT

Enhancement of settling tank capacity using a new type of tube settler

The effectiveness of a newly developed lamellar settler was confirmed by onsite experiments. The device had inclined parallel plates arranged in a vertical direction in a settling tank. This vertical arrangement method enables many more plates to be set compared to the conventional horizontal arrangement. As an original and distinctive innovation, both the right and left edges of the plates were ...

Sep. 1, 2010

By IWA Publishing

Toro Equipment celebrates the first anniversary of its new factory in Villavaquerin

It marks the first anniversary of the inauguration of the new Toro Equipment’s factory in Villavaquerín. Currently in the plant has three production lines: Dissolved air flotation unit Anaconda. Compact plants. Manufacture of bolted storage tank and settling tanks W-Tank. The new facilities have increased the range of bolted storage tank and settling tanks W-Tank. Toro ...

Mar. 4, 2015

By Toro Equipment S.L.

Dynamic one-dimensional modeling of secondary settling tanks and system robustness evaluation

One-dimensional secondary settling tank models are widely used in current engineering practice for design and optimization, and usually can be expressed as a nonlinear hyperbolic or nonlinear strongly degenerate parabolic partial differential equation (PDE). Reliable numerical methods are needed to produce approximate solutions that converge to the exact analytical solutions. In this study, we ...

Jun. 5, 2014

By IWA Publishing

On time discretizations for the simulation of the batch settling–compression process in one dimension

The main purpose of the recently introduced Bürger–Diehl simulation model for secondary settling tanks was to resolve spatial discretization problems when both hindered settling and the phenomena of compression and dispersion are included. Straightforward time integration unfortunately means long computational times. The next step in the development is to introduce and investigate ...

Nov. 7, 2015

By IWA Publishing

Concentration-driven models revisited: towards a unified framework to model settling tanks in water resource recovery facilities

A new perspective on the modelling of settling behaviour in water resource recovery facilities is introduced. The ultimate goal is to describe in a unified way the processes taking place both in primary settling tanks (PSTs) and secondary settling tanks (SSTs) for a more detailed operation and control. First, experimental evidence is provided, pointing out distributed particle properties ...

Oct. 20, 2016

By IWA Publishing

Exploration/Mining - Case Study

The overflow of the settling tank is pumped to Sofi Filter via a centrifugal pump. Due to the filter's cross-flow design, part of the feed flows through the filter element and part returns to the process. In this application Sofi Filter is equipped with a 10 um metal wire mesh element. The filtrate from Sofi Filter can be drained or reused. Sofi Filter reduces the amount of water in the settling ...

May 1, 2014

By Sofi Filtration

Toro Equipment, speaker in Aquatech Mexico

During days 5th to 7th of September, Toro Equipment will be present as exhibitor in Aquatech Mexico in booth 725. We will be there more than glad to receive your inquiries or any kind of question. In addition to participate as exhibitor, we will also hold a speech and we are pleased to invite you to the conference “W-Tank Applications, Big Volumes Corrosion Free” which will be ...

Aug. 31, 2017

By Toro Equipment S.L.

A consistent modelling methodology for secondary settling tanks: a reliable numerical method

The consistent modelling methodology for secondary settling tanks (SSTs) leads to a partial differential equation (PDE) of nonlinear convection–diffusion type as a one-dimensional model for the solids concentration as a function of depth and time. This PDE includes a flux that depends discontinuously on spatial position modelling hindered settling and bulk flows, a singular source term ...

Jul. 4, 2013

By IWA Publishing

Assessomg the Performance of Secondary Settling Tank by Means of Flow Modeling

ABSTRACTA model of the double-decker rectangular settling tanks proposed for the Wastewater Treatment Plant of Besòs in Barcelona, Spain was prepared using Computational Fluid Dynamics (CFD). The modeling approach used was a three dimensional, multi-phase simulations with solids transport and removal included, and reflected the state of the art in clarifier modeling. Special attention was paid to ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Frito- Lay Kashira WWTP Project - Russia - Case Study

Customer: BIOTHANE Systems International BV Project Name: Kashira WWTP Manufacturing year: 2002 Scope of supply 2 pcs. of Settler 1 pcs. Polymer Preparation Unit Automatic, 1m3 capacity 1 pcs. Ø 6 m. Pre-Settling Tank with Scraper mechanism, completely AISI 316 Ti 1 pcs. Screw Conveyor, spiral diameter is Ø 215, completely AISI 316 Ti 2 pcs. SBR- Automatic discharge ...

May 15, 2018

By ASTIM A.S.

The role and control of sludge age in biological nutrient removal activated sludge systems

The sludge age is the most fundamental and important parameter in the design, operation and control of biological nutrient removal (BNR) activated sludge (AS) systems. Generally, the better the effluent and waste sludge quality required from the system, the longer the sludge age, the larger the biological reactor and the more wastewater characteristics need to be known. Controlling the reactor ...

Apr. 1, 2010

By IWA Publishing

Case study - oil removal prior to evaporation

Customer: Locomotive Service Company located in Texas - repair and maintenance of railroad locomotives and cars. The Problem: Customer installed a water evaporator system to reduce waste water volume and disposal costs. Evaporator system included a small oil/water settling tank, but no oil skimming system. Customer needed an automatic oil skimming system to continually remove the ...

May 23, 2012

By SkimTech Inc.

Glass Recycling Facility Wastewater Treatment Case Study

Recycling Wastewater Treatment Success Stories Glass Recycling Facility Wastewater Treatment A glass recycling facility needed a means to increase the size of their settled solids so they could be dewatered in their filter press. The fine solids caused carry through of the press (cloudy filtrate) and did not dewater well. The samples tested were from the initial ...

Jun. 16, 2009

By Integrated Engineers Inc.

Do you need a storage tank? W-Tank® makes it easy

Toro Equipment launches a new video-manual to W-Tank® installation After several requests of our clients, we have taken a next step to make easier the installation of the W-Tank®. We have decided to elaborate a video-manual that explain step by step the assembly of W-Tank® Digesters, Storage & Settling tanks. If you have ever wondered how a storage tank can be assembled quickly ...

Sep. 19, 2018

By Toro Equipment S.L.

Innovative use of lamella clarifiers for central stormwater treatment in separate sewer systems

Lamella settlers have been used in the past few years for the sedimentation of particles in wastewater and stormwater applications. A new and very innovative approach for the treatment of stormwater flows is proposed which extends the portfolio of solutions beyond traditional settling tanks. Surface runoff is stored in a sewer or a basin and finally treated in a small but continuously operated ...

Apr. 24, 2014

By IWA Publishing

Application of a CFD Model to Improve the Performance of Rectangular Clarifiers

There has been a long standing debate about the relative merits of circular and rectangular clarifiers. Both have been shown to be capable of excellent performance and both have experienced problems. The hydrodynamics of each configuration under similar hydraulic loading differ in fundamental aspects that determine what types of geometric modifications are likely to improve the clarifier ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Manufacturing ceramic bricks with polyaluminum chloride (PAC) sludge from a water treatment plant

The objective of this research work is to assess the viability of manufacturing ceramic bricks with sludge from a water treatment plant (WTP) for use in real-world applications. Sludge was collected from settling tanks at the Bolonha WTP, which is located in Belém, capital of the state of Pará, Brazil. After dewatering in drainage beds, sludge was added to the clay at a local ...

Jun. 3, 2015

By IWA Publishing

Primary settling tanks covering to prevent odors emission - Case Study

Primary settling tanks covering to prevent odors emission at the Cambrils Waste Water Treatment Plant The Catalan Water Agency (ACA) commissioned a project aiming to minimize odor emission from a Wastewater Treatment Plant (WWTP) located in Cambrils (Tarragona) that suffered from bothersome smells coming from the primary settling tanks. Occasionally, these emissions ended up into neighborhood ...

Jul. 29, 2016

By Bioconservacion SA

Experiencing space issues in designing your WWTP?

In combination with the pre-assembled treatment plants manufactured by Toro Equipment, W-Tank storage tanks, settling tanks and digesters are the perfect solution for saving space. Our customers purchase these solutions so that they can optimise execution times and minimise the space required to install a WWTP. Pre-assembled plants offer significant benefits in terms of reducing costs, ...

Jul. 9, 2020

By Toro Equipment S.L.

Development of a flocculation sub-model for a 3-D CFD model based on rectangular settling tanks

To assess performance and evaluate alternatives to improve the efficiency of rectangular Gould II type final settling tanks (FSTs), New York City Department of Environmental Protection and City College of NY developed a 3D computer model depicting the actual structural configuration of the tanks and the current and proposed hydraulic and solids loading rates. Fluent 6.3.26™ was the base platform ...

Jan. 1, 2011

By IWA Publishing