Friday, February 21, 2014

Water Treatment - How To Go About It?

Do you know that about three-tenths of water present on earth is used by humans? However, it is unfortunate that millions of people on earth are spending several hours per day collecting water from distant and even polluted sources. We should stop wasting it so that there is enough supply of fresh water for those people too. One of the ways in which we could contribute to the noble cause is by treating dirty liquid from different sources and making it fit for human use.

These days there are various appliances and chemicals available in the market for water treatment. By using these equipment and chemicals, you can prevent its wastage. By installing conditioning devices you can turn waste water into more acceptable end-use. The main aim of all water treatment processes is to remove or reduce existing contaminants from the liquid.

How is it done?

There are various processes that can be applied here. The process that is involved in treating drinking water includes separation of solid debris by using physical processes like filtration and settling. There are various chemical processes too - like coagulation and disinfection. For these processes you might need different equipment and devices specially manufactured for the treatment. A few of the water treatment supplies that you can buy for conditioning the waste water in your house are given below:

1. Hydrogen Peroxide
2. Resin Bedding
3. Pro Rust Out
4.Rez Up Feeders
5. Iron Filter Base
6. Crystal
7. Potassium Promaginate
8. Resin Cleaners
9. Gravel base
10. Carbon Filter Base
11. Softeners and Salts
12. Iron curtain bedding

How does these help?

With the use of these devices and equipment water is made fit for consumption. The substances that are removed during the process of treatment includes - disease causing bacteria, fungi, harmful microorganisms, suspended solids, viruses and minerals - sulfur, manganese, and iron. The water conditioning supplies also effectively removes man-made chemicals and pollutants including fertilizers and pesticides from the liquid.

Which one works the best?

You should always remember that there is no unique solution or process for it; it is difficult to standardize a solution. It is therefore advised that you consult with a water conditioning and plumbing solution provider to know and install the right types of equipment and devices. Nevertheless, you can get feasible suggestions from an expert.

If you need devices, chemicals, equipment or any other services and supplies regarding water treatment, Kenosha, WI based The Water Store can provide you the best all-encompassing solution for all your related problems and queries.

Thursday, February 20, 2014

Advanced Oxidation For Water Treatment - Ozone Peroxide (Peroxone)

Advanced Oxidation Processes (AOP) are a class of processes that create the hydroxyl radical. In general these processes require combining at least two different chemicals or a chemical and UV to complete the reaction. Some of the common AOP are ozone/UV, peroxide/UV, Fe/peroxide and the subject of this article ozone/peroxide.

The hydroxyl radical, the neutral state of the OH- ion, is a short-lived compound with one of the highest electrochemical oxidation potentials. this makes it highly reactive to virtually all organic compounds except those that are highly chlorinated.

In water treatment the hydroxyl radical can be used to oxidize many organic compounds all the way to CO2. This can be useful for materials that can not be treated any other way. An example would be acetone, which is the oxidation product of isopropyl alcohol (IPA). This compound is not easily stripped or absorbed onto carbon, but it can be oxidized to CO2 using the hydroxyl radical. Unlike membrane processes which transfer contaminants from one stream to another, i.e. concentrate the contaminant, oxidation processes that completely remove the contaminant from water.

All advanced oxidation processes make hydroxyl radicals. The selection of the appropriate process is an engineering analysis to minimize the cost of formation with the most efficient use of the hydroxyl radicals produced. Ozone/UV AOP require that the water have a relatively high UV transmittance, i.e. that the UV light can readily pass through the liquid. In applications where this is not possible another oxidation process should be employed.

The ozone peroxide process combines ozone from an ozone generator that has been dissolved into water with hydrogen peroxide to form one hydroxyl radical. the combination of ozone and peroxide is sometimes call peroxone. The advantage of this process is that it is not dependent on the UV transmittance of the water and does not require the added capital cost associated with the UV reactor. After reaction nothing is added to the water except oxygen. So, the process is sustainable.

The ozone, a gas produced in an ozone generator, is often transferred to the water via fine bubble diffuser or venturi injector. Peroxide is added via metering pump. The venturi injector is becoming a more common option since i can provide excellent mixing of the ozone, water and peroxide due to the high shear forces inside the venturi. The injection can be done at a single point or multiple points. The latter may be necessary if the amount of ozone to be injected is large versus the volume of water.

The amount of peroxide required relative to the ozone is 0.5:1 to 1:1 on a weight basis. This ratio varies from application to application. The proper amount is determined from experimentation. It is important to note that both ozone and peroxide can react with organic matter in water directly, although not at the rate of the hydroxyl radical. Given the complexity of most applications careful laboratory and pilot studies are recommended.

It is also important to note that since hydroxyl radicals are not selective oxidants, they will react with any oxidizable species. Since the radicals are expensive to form, less expensive oxidants or methods should be used to deal with the easier to deal with materials that could waste the hydroxyl radicals. Examples would include iron, manganese, hydrogen sulfide, etc. The advanced oxidation process should be targeted at the higher value refractory materials in solution.

Ozone peroxide has been used in a number of applications commercially including the treatment of 1,4 Dioxane. A difficult to treat organic solvent found in contaminated groundwater. it has also been approved to treat municipal wastewater for reuse.

Given the simplicity and flexibility of the ozone peroxide process and the lack of any byproducts, it is a good option for wastewater treatment applications where refractory organics are present.

Tuesday, February 18, 2014

Whole House Water Treatment - Easy Steps to Cleaner Water

Everybody wants to drink good tasting water, but even more important, having pure water is vital to your health. That's why whole house water treatment is a hot topic. If you read the papers or surf the Internet you will easily learn how dangerous the water supply in many cities can be.

A way around this toxic water is to control the water filtration in your own home. As you may know, bottled water is also extremely inefficient, and can sometimes be of even lower quality than tap water. Still, tap water picks up contaminants on its way through the pipes to your house. But with proper water treatment equipment, municipal water can be made quite pure and safe.

First, you need to learn what THMs are and how they play a role in the filtration process. THMs are a byproduct of the chlorination process that most public drinking water systems use for disinfection. Chloroform is the primary THM that scientists are concerned about. Even the EPA does not allow public systems to have more than 100 parts per billion of THMs in treated water. However, some municipal systems have had difficulty in meeting this standard.

Second, make sure your system can filter water of the primary toxic culprits. Such bad boys of the water world includes: chlorine and chloramines, Volatile Organic Compounds (such as pesticides and herbicides), heavy metals like mercury, bacterial/viruses, and lastly fluoride.

Third, select a whole house water treatment system from a reliable manufacturer. When you're shopping around, ask the associate if the main filter unit can be easily replaced at least every three years. A dependable company will also offer you a complete guarantee and certification of their products.

Fourth, you need to know the details about installing water treatment equipment.

What many people do not realize is that most devices such as this need to be installed by a licensed plumber. Be sure and read the fine print when buying a system. They should come with all the installation instructions. But still many are hard to actually install and require assistance by a skilled professional.

After that, know what a system includes. The first important piece a system will include is the main filter unit. These will vary in size, but many companies are creating small to mid-sized units that are unobtrusive and still effective. The next items to look for are the pre-filter and installation kit. Also, make sure the pieces include a shut-off valve and the required hardware pieces.

Lastly, plan for the time it will take and the cost for the installation process. A whole house water treatment system normally takes 1.5 to 2.5 hours to install by a licensed plumber. Prices for plumbing services will vary from state to state but an average cost of $150 to $250 should be expected.

Monday, February 17, 2014

Books on Water Treatments and Water Engineering

I have compiled a list of book reviews on water treatments and water engineering technologies and procedures for students and professionals alike. Hope this will help for references and guidance in learning and solving problems.

Principles of Industrial Water Treatment - 1985 Drew

This book provides the reader with up to date information on various water treatment subjects. The authors from Drew Chemical Corporation managed to present the principles upon which various industrial water treatment practices are based, in an understandable fashion. With a broad coverage, this book addresses a wide spectrum of water treatment industrial practices.

Wastewater Engineering - treatment, disposal and reuse - Tchobanoglous and Burton

An extensive volume focusing more on wastewater and water recycling. A Good quality examples and solutions, discussion topics and problems it has more than thirteen thousand pages.

Basic Water Treatment - Thomas Telford Publishing - C. Binnie - M. Kimber - G. Smethurst

This book has been targeted for university students, and also for the practicing water treatment engineers, for whom it will be a useful reference book, and a mechanical engineers and chemists who need to put their specialized knowledge into a boarder framework. It provides essential background and is a useful first choice reference book for many aspects of water quality and water treatments.

Filters and Filtration Handbook - Christopher Dickinson

A book of practical guide for engineers, managers and specifiers, incorporating in volume essential and useful information on the physical water purification techniques filtration and separation.

Boiler Water Treatment FAQ - Praveen Verma

This book offers a fundamental understanding of boiler operations on a wide variety of boilers. It is geared towards the novice operator or for as a learning guide. Comes handy to solve any boiler problem quickly and easily.

Illustrating on the immense knowledge and experience of the most respected firms in the industry, this book is the first major reference on the science of water treatment in several decades. It covers both the practical and academic aspects of water quality analysis, treatment plant procedures.

Systems Analysis for Water Technology - By Gujer, Willi

This book deals in a to the point format the methods used to develop mathematical models for water and wastewater treatment. It provides a systematic approach to mass balances, transport and transformation processes, kinetics, stoichiometry, reactor hydraulics, residence time distribution, heterogeneous systems, and the dynamic behavior of reactors, error propagation, parameter identification, error analysis, process control, time series analysis, stochastic modeling and probabilistic design.

Written as a textbook it is mainly intended to support graduate and doctoral students in environmental engineering, but may also serve as a valuable resource for academics and practitioners similarly.

Procedures Water Treatment Plants Employ to Cleanse Waste Water

Have you ever thought about how much waste water, or water contaminated by elements such as human or industrial waste, we produce each day? Nobody managed to come up with a specific figure just yet, but observing water treatment plants should give you an idea. Several new methods of waste water treatment have sprung up over the years because of the amount of waste water treatment plants handle on a daily basis. The increase in human population over the past decade also increased the amount of contaminants in our water supply. Human waste like feces or urine is commonly associated with water contamination, but other substances like paint, rubber residue, and industrial waste contribute to it as well. The main purpose of waste water treatment is to purify contaminated water for reuse or release back into the environment. It's a necessary process, especially since we've been using up our environment's supply of clean water at an alarming rate. Here are a few of the processes treatment facilities use to purify water. Flocculation Flocculation is a process that involves adding a clarifying agent to waste water, which solidifies the contaminants and makes it easier to remove them. A clay flocculant can easily separate dye, heavy metals, latex, oil, phosphates, paint, adhesives, and ink from waste water. Filtration Filtration is one of the earliest methods of removing solid contaminants from waste water. Today's filtration processes involve the use of a chamber filter press, which processes the water in batches. The process begins with clamping a stack of filtration plates together, and running the contaminated water through the plates. As the process continues, the solid contaminant accumulates into a "filter cake" within the plates. This filter cake is removed before the next batch of water is processed. Dewatering Sludge Sludge is the semi-solid material left behind by industrial waste water treatments. In a way, dewatering is the opposite of filtration and flocculation. Instead of removing solids from water, dewatering removes water from solids. While the primary purpose of removing water from sludge is to process that water for reuse, it also serves another purpose. Sludge, like any other waste material, needs to be disposed. If you own a factory, you'll find dumping waste often requires a lot of work and funds, especially if it's something as heavy as sludge. Removing water from sludge makes it lighter and easier to dispose. Aeration Aeration focuses on treating contaminated bodies of water. It increases the oxygen levels of waste water, which promotes the expulsion of toxic gases and breaks down other contaminants. There are three types of aeration: - Subsurface aeration - This process infuses oxygen beneath the water's surface to improve its overall oxygen levels. - Surface aeration - This type of aeration promotes oxygen exchange at the surface of the water, and releases contaminants like methane or carbon dioxide. It involves the use of fountains, floating surface aerators, and paddlewheel aerators to agitate the water's surface. - Natural aeration - A combination of subsurface and surface aeration, natural aeration involves introducing plant life into the water. These plants restore oxygen to the water through the natural process of photosynthesis.

Domestic Waste Water Treatment Plant With Rotordisk System

There are several types of waste, municipal waste (household waste) that a fluid is one of the environmental problems that are very well interfere with the existing watercourse. It is because of some content in the waste, including chemical and biological rubbish. These residues can in principle be broken down by itself in nature, but it will take a long time for neutering. To accelerate the neutralization of the waste treatment system may need to decipher the biological and chemical substances in water that can be accepted by nature without harming fish or plants. Process that usually takes many years becomes nature, but with this system, it only takes 12 to 24 hours. Usually, the treatment plant consists of several processing units as follows: 1. First Phase of initial treatment Screen with a bar mounted in the tank that serves as the first filter processing solids settle or float and objects with a diameter that can be solved. The droppings of the cleaning process and the decision manually. 2. The first stage of processing Form of initial processing at the waste water treatment plant is the presence, acting as a floating bath oil or grease catcher. The bathtub is necessary because the waste can be processed waste is to be a servant in the kitchen. After passing through the flotation units then the units will be the primary clarifier tanks precipitated solid waste. 3. The second phase of treatment Basic process of waste is in this second phase of the experiment in the biological treatment process that the unit rotating biological contractor (RBC). The RBC is the degradation of pollutants, microorganisms that grow on the disk rotating disk (rotor disk) Microorganisms will grow and attach to form the rotor disk of biomass / biofilm. Gravity drainage of waste produced by the high water level in zone 4 below the water level in the 3, 2 and 1. Waste water will be treated by a biomass which grows on the band in each successive disc areas zone 1 to 4. Biomass grown in the rotor disk will have contact with oxygen in the air at the time was above the water resulting from the transfer of oxygen. The rapid growth of gangs in the biomass produced in the areas of disk and a progressive reduction in the next area. Physics of the biomass in Zone 1 will be more daring with the strands of a dark brown again. While the area is will thin with light brown or yellowish. Sewage in 4 is quite clear the contents of the BOD, and the suspension base material. In this area, most of the water is recycled back into the tank as soon as precipitation and partly transferred to a final resolution purpose. Recycling is to provide direct access to the water content of the BOD concentration of oxygen is low, but high enough so that it will help the weight of a new waste water treatment units. 4. The final processing stage The plant is the last unit of the final clarifier settling to reduce suspended solids and biomass pellets peeling. The water that comes out after going through the above steps, when it was discovered the body is clear and free of solids discharged into rivers on the right.

Water Treatment Plant Design - Importance of Water Softening Plant

Water treatment plant design is directly synonymous with the method or step of treating or filtering water. This is mainly done to lessen the chances of contamination or reduce the scope of any germ build-up. There are certain vital steps that are taken to ensure the purity of it better known as mineral water. This water is again packed into bottles made of superior quality and high-grade reliable plastic variety. Water is packaged into the bottles only after making it suitable for drinking the various purification and filtration process that takes place in the water softening plant. It is made such that there is no chance of germs or water-borne diseases inorder to ensure the safety of such drinking water form. This water should be made hygienic enough and appropriate for drinking containing all the beneficial minerals. Packaged drinking water also known as mineral water is now being considered a preferable choice among most buyers. This kind of water is best suited for those who are prone to diseases carried through water and provides much guarantee on the safety or purity There are a lot of mineral water brands which manufacture such packaged drinking water in pet bottles. These bottles are further priced affordably and reasonably to cater to all sections of buyers. Water softening plant takes the help of various processes enabled in the Water treatment plant design to make it suitable for different kinds of industrial purpose. This kind of treatment will help in facilitating the varied processes for treating water and making it apt for drinking. It is later packaged by different manufacturing brands and labels after conforming to the stringent set standard norms or regulations. These pet bottles are sealed in tightly with a bottle cap to secure the safety of the present water inside the bottle. These are manufactured in keeping with the client or consumer needs. It is best to avoid buying a bottle with an open seal because such seal is enough proof of the fact that the water inside the bottle has been tampered with or contaminated. It is also necessary for preventing any kind of damage or leak caused to the bottle. All kinds of water treatment process are used for distillation and filtration of impure water and those present in the natural environment or in the surrounding water bodies. This will further help in reducing the pollution levels and thereby maintain the ecological balance. Some of these treatments are also used for distilling and filtering the water of polluted lakes, ponds, lagoons, sludge and thereby keeping intact the natural equilibrium. This water is purified such that it is free and devoid of any impurity, life risking chemicals or chemical substances. This is mainly done to remove the solid impurities or substances present in the water alongside bacteria, fungi, algae and fertilizers. This mineral water is later packaged and processed for the sale of such bottles.