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Secondary Settling Tanks

RRP $54.95

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Although developments in wastewater treatment over recent decades have focused on the biological reactor, the secondary settling tank (SST) also plays a major role in achieving increasingly stringent effluent quality standards. This report collates many of the significant developments that have taken place in SST theory, design, modelling and operation. Earlier SSTs were designed only by empirical hydraulic criteria such as overflow rate, which do not recognize sludge concentration and settleability. Today, there are available not only much improved design procedures but also hydrodynamic models for simulating water and solids distribution and flows in full-scale SSTs. Nine chapters cover a wide range of subjects including: Flocculation and settling behaviour of biological sludges SST performance evaluation protocols Development and evaluation of the different design procedures such as the flux theory and the ATV design rules Developments in and application of one- two- and three-dimensional modelling Experience-based aspects of design and operation of circular, rectangular and vertical SSTs. Reprinted for 2006 Scientific and Technical Report No.6


Mir Alam Tank Lake Fun Book

RRP $13.99

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Does your little one love spending time with the family at the lake? Then they will love this delightful book filled with activities related to water-side vacations. The Lake Fun Book includes coloring pages with everything from the animals you'd find at the lake to the tents you sleep in. Puzzles and word finds create fun and educational activities, for both you and your child, throughout this enjoyable book. As a bonus, this book would serve as a good resource for the times at the lake when the weather isn't suitable to be outdoors. Pick up this charming activity book for your youngster today! Are you constantly looking for activities to keep your young one busy during those bad weather times at the lake? Are they tired of sitting in the tent with nothing to do? Then the Lake Fun Book is the book for you! Filled with lake related coloring pages, challenging word finds and educational puzzles this book will keep your littlest child busy for hours. In addition, the lake related theme throughout will get your youngster excited about all the things the lake has to offer when the weather clears. Pick up your copy of this charming activity book today and be prepared for that next rainy day at the lake! · DISCOVER:: FUN on the lake. This body of water is a true gem. Now you can work your way through the majestic shores that make this lake so special. Fun for all ages. Share the gift of Lake Fun with someone you love today. ***Limited Time Discount Offer!*** ***Regular Price $12.99*** · · ***Plus, As a Special Thank-you for buying this Book Today, You Will Receive FREE puzzles and games inside the book*** · · Do you want to see a side of the lake a child rarely gets to see? Do you or a child you love need to express their creative side while enjoying a fun cultural experience? Read on to find out more about how this book can solve your problem Buy:: The one and only Lake Fun Coloring Book Here's a preview of what you'll find inside this book: · · Fisherman First Aid Kit Tent Sleeping Bag Beach Towell Fish Net Flippers Boat Paddle Hat Visor Swim Trunks Bikini Radio Playing Music Life jacket Rafts Knee Board Tubes Friends Fire Wood Camp Fire Grill Sun Screen Lotion Money Drinks Goggles Wake board Ski Rope Anchor Bug repellent Beach Chairs Binoculars Book Playing Cards Cooler Coozie Camera Snacks Tackle Box Fishing Rod Worms Cricket Water Shoes Skipping Rocks Water bottle Floaties Swim Noodle Dry Clothes Phone Trash Bag Toilet Paper Paper Towels Watermelon Lantern Flash light Boat light Ski rope Bobber Fishing Hook Catfish Bluegill Turtle Minnow Crickett Water Snake Duck Pelican Seagull Frog Large Mouth Bass Small Mouth Bass Trout Laptop Computer Tablet Swim Cap Nose plug Fish food Bag of ice Dog Pop sickle Marshmallows Chocolate Graham crackers Smores Canoe Kayak Paddlebaord Flip flops Lake Map Swim Noodle And much, much more! Want to Know More? Scroll to the top of the page and select the "BUY" button for instant purchase. Buy Your Copy Right Now!


The Aboveground Steel Storage Tank Handbook

RRP $425.99

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The Aboveground Steel Storage Tank Handbook I like the summary of regulations in conjunction with industry standards and products. Usually a book covers one or the other. --Wayne Geyer, Executive Vice-President, Steel Tank Institute I think this is a valuable text in that it does a very good job presenting the two types of ASTs. --Darryl J. Butkos, Hydrogeologist and Environmental Engineer The U.S. aboveground storage tank (AST) market will approach $2.0 billion in 1995 and has an annual growth rate of approximately 5 percent. Shop-built ASTs have proliferated over the last 10 years and are replacing the underground tanks that have caused a large percentage of groundwater contamination. Larger field-erected tanks are now found at almost every industrial facility because of their greater reliability and the lessened risk of environmental spills. The Aboveground Steel Storage Tank Handbook discusses the myriad of regulations, codes, and manufacturing standards and shows how they are intertwined. It is the first handbook on aboveground storage tanks that explains the unique differences between field-erected ASTs and shop-built ASTs. The authors have divided the Handbook into four easy-to-understand sections: Markets, Regulations, Standards, and Products. Anyone who finds himself or herself working through the maze of the AST compliance paperwork will find this book to be a great benefit as a single-source reference guide.


Modeling Onsite Wastewater Systems At The Watershed Scale

RRP $54.95

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The purpose of this User’s Guide is to provide guidance on modeling watershed-scale problems associated with decentralized wastewater-treatment systems (DWTS), with a particular focus on onsite wastewater systems (OWS). The guide focuses on modeling transport and fate of the nutrients nitrogen (N) and phosphorus (P) because these are the most common OWS constituents of concern, and because these pollutants are regulated in surface waters (N and P) and in ground water (N). However, limited but useful information is also provided regarding the modeling of organic wastewater contaminants, such as pharmaceuticals, pesticides, and other household products. It provides some general information on modeling bacterial pollutants.
The guide can be used by decision makers to determine whether relatively simple screening models (presented in Appendix A) are sufficient for use in the decision-making process, or if sophisticated models (presented in Appendix B) are more appropriate. The document provides guidance about the type of model that should be used for particular scenarios, and the data requirements for model implementation. The guide is also useful to modeling experts by providing guidance on important issues such as conceptual-model development, mathematical-model selection, modelsensitivity analyses, model uniqueness, and calibration. Finally, the guide provides some real-world and hypothetical case studies that can demonstrate the usefulness of using watershed-scale models, and provide templates for certain common scenarios relevant to the decentralized wastewater treatment community.


Tank Girl - Armadillo And A Bushel Of Other Stories

RRP $15.99

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She's back! Join everybody's favourite beer-swilling, chain-smoking, kangaroo-lurving lunatic as she embarks on her first 'proper' literary excursion. Violence! Time travel! Midgets! Yes, tremble in fear at "Tank Girl: The Novel!" Tank Girl and Booga have launched an all-out assault on the town of Chankers, starting with the church. But what prompted this attack? Could it have something to do with Booga's nightmare vacation there years ago? Well, duh - whaddyou think?Destined to become a literary classic - y'know, like Watership Down or something - and a mainstay of school syllabuses, this is Tank Girl as you've never experienced her before: in attractively justified eight point serif. Warning: Adults Only!



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