Sewage treatment The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment and prevent pollution.[1] Sewage treatment‚ or domestic wastewater treatment‚ is the process of removing contaminants from wastewater and household sewage‚ both runoff (effluents) and domestic. It includes physical‚ chemical‚ and biological processes to remove physical‚ chemical and biological contaminants. Its objective is to produce an environmentally-safe
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------------------------------------------------- Permaculture From Wikipedia‚ the free encyclopedia | Agriculture | General | * Agribusiness * Agricultural science * Agroforestry * Agronomy * Animal husbandry * Extensive farming * Factory farming * Farm * Free range * Industrial agriculture * Mechanised agriculture * Ministries * Intensive farming * Organic farming * Permaculture * Stock-free agriculture * Sustainable agriculture * Universities
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WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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How water is purified in water treatment plants Pre-treatment 1. Pumping and containment – The majority of water must be pumped from its source or directed into pipes or holding tanks. To avoid adding contaminants to the water‚ this physical infrastructure must be made from appropriate materials and constructed so that accidental contamination does not occur. 2. Screening (see also screen filter) – The first step in purifying surface water is to remove large debris such as sticks‚ leaves
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HARVESTING RAINWATER FOR LANDSCAPE USE PATRICIA H. WATERFALL Extension Agent‚ University of Arizona Cooperative Extension/Low 4 Program Second Edition‚ October 2004 Revised 2006 Cooperative Extension College of Agriculture and Life Sciences The University of Arizona Tucson‚ AZ 85721 Second Edition‚ October 2004/Revised 2006 • AZ1344 Issued in furtherance of Cooperative Extension work‚ acts of May 8 and June 30‚ 1914‚ in cooperation with the U.S. Department of Agriculture‚ James A
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CHAPTER I The Problem and Its Background Introduction Background of the Study Barangay 663 in Ermita Manila is surrounded by three (3) universities namely‚ Adamson University‚ Technological University of the Philippines and Philippine National University. In this case‚ this said barangay has obviously many carinderias‚ sari-sari stores and bakery. Most of the time‚ students hang-out in these places and it cannot be denied that the area or the streets have trashes. Ever since‚ flood is the main
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Sustainability in Hotels the hospitality sector are relatively straightforward to record and interpret (e.g. occupancy percentages‚ capitalization rates‚ RevPAR‚ etc.)‚ sustainability has remained intrinsically difficult to quantify. Sustainability issues touch on nearly all aspects of hotel ownership and management‚ necessitating the alignment of environmental‚ social‚ and financial factors to promote responsible business operations over time. Despite the lack of clear‚ universally accepted metrics
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Hong Kong International Airport Students Name/ ID No. : 1. Lee Pin Lit 2. Ng Wei Han 3. Yong Zi Lip 4. Lee Leong Yong 5. Loo Jia Long Lecturer Name : Shervin Motamedi ( M. Sc ) Table of Contents * Introduction * Design * Construction Stage and Process * Intentions of management or designer * Environmental risk mitigation * Conclusion Introduction : Hong Kong International Airport is one of the greatest civil engineering
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PM598 – Go Green Consulting’s RFP 2010 Go Green Consulting’s Headquarters Go Green Consulting 13591 SE Sunnyside Rd Clackamas‚ OR 97015 Telephone: 503.432.5864 E-mail: tnbackes@me.com Wikispaces: http://gogreenconsulting.wikispaces.com Tara Backes‚ Mandalyn Echols‚ Raj Rami PM598 – Fall 2010 Pg 1 of 14 PM598 – Go Green Consulting’s RFP 2010 TABLE OF CONTENTS 1. INSTRUCTIONS TO BIDDERS..........................................................................................
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WASTEWATER TREATMENT PLANT DESIGN Term Paper 1 ALTERNATIVE METHOD FOR ONSITE SEWAGE DISPOSAL (29 Pages) March 2nd‚ 2012 TABLE OF CONTENTS 1. INTRODUCTION 3 2. INFORMATION 4 3.1 Soil Absorption System in a septic tank 4 3.2 Soil Failures 6 3.3 Soils 7 3. ALTERNATIVE METHODS FOR ONSITE TREATMENTS 8 AND SYSTEMS OF DISPOSALS 4.4 Alternative method for soil treatment and disposal systems 8 4.5 Alternative
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