This last blog in sludge management will attempt to sum up what the other three blogs have already said and add a little bit more, looking at sludge management from a holistic point of view. So what is sludge all about, it used to be how we dispose of the waste products from the wastewater … Continue reading
As promised in the last blog the subject that is being discussed this week is sludge digestion and some of the more simplified control systems and instrumentation surrounding this area and the possibilities that exist. Sludge digestion is probably one of the most common ways of dealing with sludge, getting a quality product from waste … Continue reading
In this week’s blog Oliver Grievson looks at the most basic process of sludge treatment outside what is done on sites in settlement tanks or sludge tanks. He is of course thinking about mechanical thickening or dewatering, and will of course exclude picket fence thickening (it has its place but not in this blog). When … Continue reading
It’s a fact the water industry whether it be in drinking water treatment or in wastewater treatment produces a lot of sludge. A quick look through the Internet will give you a ball park estimate but to save you the time it is about 1.4 million dry tonnes in the UK and about 7 million … Continue reading
Hi WaterFront followers, The archived webinar is now available for your viewing pleasure below (I apologize for the quality as the recording software has some limitations). The webinar is broken into (3) clips: BlueBox, Case Study – Philadelphia Water Department, Q&A session. Presenters were: Oren Blonder, product marketing manager, Whitewater John Vogtman, water quality engineer, … Continue reading
In this last post on Activated Sludge Oliver Grievson is going to talk about what can be done within the process that can protect the overall permit of the treatment works and attempt to sum up what he has said so far. As we all know of all the process that are used in wastewater … Continue reading
In the third post of this blog series on the problems associated within the activated sludge process and how to control them Oliver Grievson is going to look at the Return Activated Sludge system. So what problems are seen and how can they be fixed? A particular one that I have seen and this especially … Continue reading
In the second in this series of blogs looking at controlling the problems experienced in the activated sludge process within the wastewater industry Oliver Grievson looks to contentiously talk about dissolved oxygen control. He says contentiously because everyone has an opinion on this and those opinions are usually pretty strong.He is going to suggest ways … Continue reading
Great new webinar your’s truely will be hosting. Click on the image to register.
To start off this series this series of blogs is going to look at a basic nitrifying activated sludge plant it will not look at activated sludge plants that are designed to remove nutrients although some of the principles will be the same. As a general rule the problem with the operation of the activated … Continue reading
In the start of a new blog series for WaterFront, Oliver Grievson (manager of the Water Industry Process Automation and Control Group on Linked in) will be looking at the specifics of controlling different elements of the treatment processes that are used everyday in the water industry and how the industry can implement instrumentation, process … Continue reading
Let us briefly review what we learned from Edwin Roehl and John Cook of ADMI in Part III. It is well known that the most common empirical approach to demand forecasting is ordinary least squares (OLS), which relates variables using straight lines. Now, over long time periods, this can be an accurate approach though that … Continue reading
WaterFront Followers, Let us briefly review what we learned from Part 2 based on the work of John Cook and Edwin Roehl of ADMI. It is well known that the most common empirical approach to demand forecasting is ordinary least squares (OLS), which relates variables using straight lines. Now, over long time periods, this can … Continue reading
In Part I of this series by John Cook and Edwin Roehl of ADMI we learned that sensitivity analysis quantifies the relationships between a dependent variable of interest and causal variables, e.g., we know demand is somehow dependent on ambient temperature and precipitation. Computing sensitivities requires defining the relationships between variables through modeling. Models generally … Continue reading
Hi Everyone, I apologize for the long break. Things here have been hectic. I just got back from a great week in Munich attending the IFAT Entsorga show, and presenting a case study for Whitewater’s BlueBox Event Detection System at the SWAN Forum’s annual conference. In one month I will be attending the ACE12 show … Continue reading
