WASTEWATER CONTAMINANT REMOVAL WHITE PAPERS & CASE STUDIES

Standardizing On-Site Hypochlorite Generation Disinfection Technology In Water And Wastewater Treatment Plants Increases Safety And Eases Operations
Standardizing On-Site Hypochlorite Generation Disinfection Technology In Water And Wastewater Treatment Plants Increases Safety And Eases Operations

In late 2005, the City of Newberg, Oregon, decided to upgrade their water treatment plant disinfection process from gas chlorine to on-site hypochlorite generation (OSHG) in an effort to simplify operations and increase operator safety. The plant produced an average of 2.5 million gallons per day (MGD), with a peak capacity of 5 MGD.

Savings Helps MABRs Gain Traction In Municipalities
Savings Helps MABRs Gain Traction In Municipalities

An MABR is essentially a biological wastewater treatment process that utilizes seemingly passive aeration through oxygen-permeable membranes. Oxygen transfer through the MABR membranes is diffusion based: driven by concentration differences such that oxygen passes from air at atmospheric pressure into water at a higher hydrostatic pressure. This oxygen transfer mechanism, wherein air is supplied to the process at very low pressure, is the reason MABRs have significantly lower energy consumption compared to other wastewater treatment processes, such as conventional activated sludge (CAS), that utilize diffusers. This energy savings is one of the key reasons MABRs are gaining traction in the municipal wastewater industry.

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WASTEWATER CONTAMINANT REMOVAL PRODUCTS

Reliable. Flexible. Experienced. Ozone And Advanced Oxidation Reliable. Flexible. Experienced. Ozone And Advanced Oxidation

De Nora offers reliable, robust and proven ozone solutions to ensure peace of mind, backed by extensive global experience.

OMNIFLO® Sequencing Batch Reactor (SBR) MAX System OMNIFLO® Sequencing Batch Reactor (SBR) MAX System

Evoqua's OMNIFLO® SBR MAX system with Jet Tech technology combines the benefits of a true-batch SBR with the benefits of a continuous fill batch reactor process to treat wastewater influent flows to over 5 times design.  The OMNIFLO SBR MAX system optimizes hydraulic handling during storm flows, reduces equipment sizing and cost, and can trim energy costs over 15%!

Aspiral™ Packaged Wastewater Treatment Solution (MABR) Aspiral™ Packaged Wastewater Treatment Solution (MABR)

Aspiral™ is a smart, packaged wastewater treatment solution based on the Membrane Aerated Biofilm Reactor (MABR) technology.

Next Gen Capital Controls® Chlorinators Next Gen Capital Controls® Chlorinators

The unique compact design incorporates the best existing Capital Controls® technology with exciting new features. With just three models ranging from 10-10,000 lbs/day capacity, each chlorinator is available with automatic or manual feed and a 10” flowmeter for an easier read. Sonic operation on the 4100 model eliminates the need for a differential pressure regulator. On all automatic models, an additional controller isn’t needed, reducing components – and costs. 

FiltraFast™ Extreme-Rate Compressible Media Filter FiltraFast™ Extreme-Rate Compressible Media Filter

FiltraFast™ is a high-rate downflow gravity or pressure filter that uses a unique compressible media. The filter only uses hydraulic loading to create the required media porosity without any mechanical compressing devices. A proprietary backwash sequence enables maximum recovery, extends media life, and limits energy consumption. This process 1) significantly reduces the footprint compared to sand filters, and 2) reduces maintenance and replacement costs required by disc filters, and other compressible media filters.

UV Package Plant UV Package Plant

Calgon Carbon UV Technologies is pleased to introduce the C3500D/PS Packaged System for UV Wastewater Disinfection. This product uniquely addresses the needs of smaller communities with effluent flows of less than 2.6 million gallons a day.

Pipeline Flash Reactors for Mixing & Contacting Pipeline Flash Reactors for Mixing & Contacting

Pipeline Flash Reactors™ (PFRs or spool pieces) utilize high velocity mixing to transfer ozone or oxygen-enriched sidestreams into bulk water flow, all within a compact footprint. With a PFR, ozone or oxygen mass transfer occurs in the pipeline within seconds, eliminating the need for additional tanks or basins. Whether it is providing ozone for water purification or increased dissolved oxygen for wastewater, Mazzei’s PFR uniformly distributes gas into the water and minimizes the size and cost of gas contacting.

GDT Mixing & Contacting Systems GDT Mixing & Contacting Systems

The GDT™ Process starts with the creation of ozone from an Ozone Generator. The ozone is then drawn into a Mazzei®Venturi Injector which provides dynamic mixing (a Back Pressure Control Valve adjusts injector outlet pressure optimizing ozone mass transfer in the system). Then mixing and contacting is enhanced in a Flash Reactor™. From there the two-phase flow travels to the Degas Separator (DS) & Relief Valve for additional mixing and entrained gas removal. And finally, the MTM Mixing Nozzles force dissolved ozone flow into the untreated water in the pipeline or basin for thorough mixing.

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WASTEWATER CONTAMINANT REMOVAL PODCASTS

Ozonia M and FiltraFast Provide New Options For Treatment Facilities Ozonia M and FiltraFast Provide New Options For Treatment Facilities

If you don’t need the performance of an ultrafiltration membrane but also want to avoid the large footprint of a conventional media filter, you might want to consider FiltraFast extreme rate compressible media filters. As Ryan Hess, Director of Advanced Separation with SUEZ Water Technologies suggests in this Water Talk interview, “They provide roughly ten times the hydraulic loading rate of conventional media filters.”

Getting Chlorine Disinfection Right Getting Chlorine Disinfection Right

Of all the process considerations facing wastewater treatment operators, disinfection is one of the most important. In this exclusive Water Talk interview, Gary Lohse, Technical Sales Manager, Disinfection with De Nora Water Technologies, discusses how disinfection has become increasingly complex over time. Lohse reviews a host of selection criteria including target microorganisms, control strategies, disinfection by-products, capex and safety.

Drumming Up Chemical Injection Drumming Up Chemical Injection

The operating ranges for chemical injection need to be large because of the variability of flow in many treatment operations. As Bill McDowell, Vice President of Operations with Blue White Industries explains in this Water Talk interview, “You might be down to as low as 5 or 10 milliliters a minute and then one hour later; you might need to pump 15 gallons a minute out of the same pump and through the same sensor.”

Decentralization Grows With Worldwide Property Development Expansion Decentralization Grows With Worldwide Property Development Expansion

One of the trends in water and wastewater treatment over the past decade has been a growing demand for decentralized systems. Water Talk recently caught up with Nii Mensah, General Manager of Fluence USA, to learn more about the solutions that the new company (formed by the merger of RWL Water and Emefcy) is bringing to market to address communities’ treatment needs

Converting Wastewater Treatment Facilities Into Botanical Gardens Converting Wastewater Treatment Facilities Into Botanical Gardens

Municipal wastewater treatment has traditionally taken place as far away from the populace as possible. But as people flock to cities and encroach ever closer on these facilities, the practice of extending ever further out becomes impractical and expensive. And as water becomes scarcer, cities the world over are looking at recycling wastewater from their citizenry closer to home.

Peracetic Acid (PAA) Disinfection Is Up For The Challenge Peracetic Acid (PAA) Disinfection Is Up For The Challenge

The primary consideration for evaluating disinfection alternatives has to be permit compliance. But as Sarah Stewart, Associate and Senior Project Manager with CDM Smith explains in this Water Talk interview, contact time, high color, nitrates, industrial loads and many other factors all play a role in selecting the most practical and cost effect disinfection solution for your facility.

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WASTEWATER CONTAMINANT REMOVAL VIDEOS

Disinfection Solutions From De Nora Disinfection Solutions From De Nora

Daryl Weatherup, Managing Director at De Nora Water Technologies, gives an overview of De Nora's updated disinfection offerings, including its CAPITAL CONTROLS MCP ozone generator, CAPITAL CONTROLS Chlorinator, and ClorTec onsite hypochlorite generator. 

ClorTec  For On-Site Sodium Hypochlorite Generation ClorTec For On-Site Sodium Hypochlorite Generation

There are a number of water and wastewater disinfection options worth considering, but one of the most advantageous is the use of low concentration on-site sodium hypochlorite generation. Among your OSGH options, ClorTec from DeNora leads the way. Watch the full video to learn more.

MABR Benefits And Applications MABR Benefits And Applications

The need to recycle wastewater has grown dramatically in various markets. Due to the increasing drought, rural villages suffer from lack of water for agricultural needs. Fluence delivers a revolutionary aerobic wastewater treatment solution is modular and reduces energy usage by up to 90% compared to conventional treatment.

The Aspiral MABR Plant The Aspiral MABR Plant

Local and decentralized wastewater treatment and reuse is known to be a cost-efficient resource, which is why more and more communities are adapting this planning approach.

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WASTEWATER CONTAMINANT REMOVAL NEWS

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