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  • China’s Huge Biosolids Opportunity Sludge Solutions Wanted
    number expected to double during China s 12th Five Year Plan from 2011 to 2015 In 2013 the estimated number of WWTPs reached 4 000 On average the country is building 300 to 500 each year Figure 1 illustrates the number of wastewater treatment plants as opposed to the total installed wastewater treatment capacity Figure 2 shows that China is now the third largest producer of biosolids in the world yet it has the largest infrastructure gap in sludge management infrastructure and solutions Throughout this process of investment in new WWTPs sludge management has been very much an afterthought While a national sludge management plan figure 3 was drawn up the prevailing sludge disposal method up until 2011 was illegal dumping which accounted for more than 90 percent of volume as shown in figure 4 This was partly due to regulatory restrictions on landspreading and landfill In China the mainstream sludge treatment technology is anaerobic digestion AD However currently only 50 out of approximately 4 000 1 percent WWTPs have installed AD facilities Due to a chronic lack of operational experience and knowledge only around 30 of those 50 plants actually operate their AD equipment Other sludge treatment options available in China include aerobic composting and drying China has a clear need for sludge treatment solutions that are user friendly with local expertise and have low energy consumption or are suitable for optimizing energy generation The sludge treatment market will grow as China tries to solve its sludge problem Interestingly it is likely to rely more on international suppliers to provide sludge management solutions in the next five years than it will be for wastewater solutions During that same period it is expected that investment in sludge treatment will be in the region of 10 billion Chinese renminbi or yuan RNB CNY which is equivalent to 1 64 billion USD The sludge treatment market will grow as China tries to solve its sludge problem and is likely to rely more on international suppliers in the next five years than on wastewater solutions There is no clear onesize fits all solution Incineration will make sense in some of the larger facilities but will be too capitalintensive to be used to treat the majority of the sludge in China At medium to large scale plants anaerobic digestion makes sense though air emissions issues around the use of biogas may be a barrier as air regulations get tighter Norway s Cambi recently won a contract to refit its thermal hydrolysis solution at five facilities including the 1 million m3 d 264 MGD Gaobeidian WWTP in Beijing for use in sludge pretreatment However there are currently only a limited number of digesters in China 50 and an even smaller number that are operational 30 which limits the addressable market opportunities The final disposal route will vary widely from region to region Land application may be possible where metals limits are within the allowed levels Use as a fertilizer in forestry provides another potential outlet

    Original URL path: http://www.wateronline.com/doc/china-s-huge-biosolids-opportunity-sludge-solutions-wanted-0001 (2016-02-14)
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  • Opportunities And Tips For Expanding Water Resource Recovery Facilities
    power and heat In addition to creating these products adding FOG and HSW directly to digestion offers the following benefits Improves sewer and WRRF performance Provides revenue stream from tip fees Generates significant amounts of biogas at low hydraulic loading in anaerobic digestion Creates significant cost savings from producing biogas when coupled with cogeneration Reduces greenhouse gas footprint and energy dependence Given that incorporating FOG and HSW resources is a relatively new process there is little in the way of standard operating procedures for utilities looking to add these materials to a WRRF However the practice is growing rapidly and utilities that are considering incorporating FOG and HSW can benefit from the lessons learned at existing WRRFs Key considerations for utilities considering this alternative include the reliability consistency and availability of each material as a feedstock as well as its collection network to move the FOG or HSW to a receiving station at the WRRF Additionally there are special requirements for receiving holding and transferring FOG and HSW on a continuous basis so the utility must consider these when evaluating the benefits Leading By Example Real World WRRFs Recognizing the benefits of resource recovery numerous facilities in the U S have implemented anaerobic digestion to create biogas and are achieving significant value and savings to their bottom line Gwinnett County GA and Johnson County KS for example have each reduced its plant s electric usage by about 50 percent through the development of facilities that receive and process FOG and HSW in their existing anaerobic digesters Recognizing the benefits of resource recovery numerous facilities in the U S have implemented anaerobic digestion to create biogas and are achieving significant value and savings to their bottom line California s East Bay Municipal Utility District MUD is a prime example of how one utility has incorporated resource recovery into its business model The utility s original facility which included three engines installed in 1985 was designed to meet 40 to 50 percent of East Bay MUD s demand however the utility experienced frequent flaring of excess biogas In 2011 the utility expanded its operations adding an advanced 4 6 megawatt biogas turbine to increase its capacity from 6 5 to 11 megawatts On average the expansion enables the utility to produce enough biogas to generate 6 megawatts of electricity meeting 100 to 120 percent of demand The plant requires only about 5 megawatts to operate so by selling its surplus energy renewable energy to the grid at a premium price in 2013 East Bay MUD became the first wastewater treatment plant in the U S that is also a net electricity provider Adding the turbine has enabled East Bay MUD to reduce air and greenhouse gas emissions helping achieve its sustainability goals while increasing its operational reliability Another good example of how one utility is putting resource recovery to work to improve its bottom line is the District of Columbia Water and Sewer Authority s biosolids management program DC Water one of

    Original URL path: http://www.wateronline.com/doc/opportunities-and-tips-for-expanding-water-resource-recovery-facilities-0001 (2016-02-14)
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  • 5 Ways To Ensure Utility Resiliency
    is no need for queasiness on this ride As leaders through out the sector are proving on a daily basis there are solutions at hand but they require a new approach In the past we had the luxury of taking challenges on one by one Polluted water Clean it Increased water quality standards Clean it even more no matter what the energy costs Short on water supply Build a new reservoir construct a longer pipeline Drop ping water table Drill deeper Urban flooding Channelize those streams line them with concrete Combined sewer overflows Build a deep tunnel These practices however solve one problem but create others They shift the burden exacerbating runoff increasing energy demand incurring debt that limits future options and undermin ing natural ecosystems Today s leaders are looking for new approaches that solve multiple problems simultaneously while also minimizing future risk While we can t entirely predict the future we do know that certain changes are highly probable and in some cases are already upon us For years communities have increasingly felt the brunt of either increased storm intensity or reduced water supply Some regions have even had the dubious distinction of experiencing both In the future it s reasonable to expect disruptions to energy and other supply chains price disruptions new water use patterns and disrupted business models changing consumer expectations and technological revolutions For decades water and sewer authorities have had the luxury of being monopolies in their communities but with new technologies and shifting price points that security is slowly eroding So what is a water service provider to do This is the question that The Johnson Foundation at Wingspread spent the last six years examining culminating in Navigating to New Shores Seizing the Future for Sustainable and Resilient U S Freshwater Resources a cap stone set of recommendations addressing challenges in the water sector The recommendations were based on dialogues hosted among hundreds of individual experts representing a wide range of perspectives including utilities municipalities NGO non governmental organization advocates academics growers and producers regulators and private sector entrepreneurs We dis tilled from these conversations a number of recommendations bolstered by real world examples in five categories 1 Optimize the Use of Available Water Supplies This includes fundamentals like water audits and systematic reduction in non revenue water loss to changes in rate structures that incentivize conservation while not undermining utility sustainability and diversifying supply with rainwater harvest and water reuse 2 Transition to Next Generation Wastewater Systems Again recommendations range from basics such as sewer separation and other steps to keep clear water out of collection systems to recovering energy and nutrients and considering distributed treatment such as green infrastructure and new on site waste treatment 3 Integrate the Management of Water Energy and Food Production Traditionally these three sectors have competed with each other for valuable resources especially water but communities win when the three sectors work together rather than compete 4 Institutionalize the Value of Water We can no longer

    Original URL path: http://www.wateronline.com/doc/ways-to-ensure-utility-resiliency-0001 (2016-02-14)
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  • Bill Gates Drinks Poop Water Serves Notice
    too good to merely retweet or like My enthusiasm stems from one of the world s most famous influential and capable people getting fully behind sustainable wastewater treatment and direct potable reuse bringing widespread attention to typically underappreciated water issues That person is Bill Gates most notably the multi billionaire co founder of Microsoft but also more to the point for this story co chair of the Bill Melinda Gates Foundation which works to combat extreme poverty Much of the Foundation s recent focus has been on clean water availability and sanitation but has only tangentially related to what we report at Water Online until now Through social media I was tipped off to the excellent Wired article about the OmniProcessor from Janicki Bioenergy The system supported and coming into prominence through Gates efforts converts sewage sludge into energy and drinking water at low cost 1 5 million per plant serving 100 000 people This YouTube video lays out the process nicely Gates was on site to sample the water straight from the machine as shown in the video and related in Gates own blog The Gates Notes According to Peter Janicki inventor of the OmniProcessor the end product compares favorably to the store bought bottled water he tested it against Our water meets or exceeds the standards of every one of those quotes Wired Furthermore the sludge creates enough energy to power the system and even to sell electricity back to the grid The operator can also get paid for accepting the raw sludge then paid again for selling the processed sludge aka biosolids as a fertilizer While the OmniProcessor is hoped to resolve issues in the world s most water challenged and poor regions in India and Africa for example it sounds a lot like the Utility of

    Original URL path: http://www.wateronline.com/doc/bill-gates-drinks-poop-water-serves-notice-0001 (2016-02-14)
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  • Sludge and Biosolids Processing Articles Documents on Water Online
    Thermal hydrolysis is an innovative wastewater solids conditioning process that boasts many advantages financial environmental and otherwise Is your plant a good candidate The Future Of Energy Neutral Wastewater Treatment Is Here 5 27 2015 Resource recovery during wastewater treatment is becoming essential Thanks to new technologies it s also achievable China s Huge Biosolids Opportunity Sludge Solutions Wanted 4 13 2015 As wastewater treatment plants proliferate in China the need for innovative biosolids treatment technologies and help from abroad arises Opportunities And Tips For Expanding Water Resource Recovery Facilities 3 9 2015 Transform your residuals and biosolids from a burden to a benefit for both your utility and the environment 5 Ways To Ensure Utility Resiliency 2 9 2015 Following six years of research The Johnson Foundation at Wingspread helps water and wastewater utilities navigate the uncertain future sharing best practices for resiliency sustainability and water security Bill Gates Drinks Poop Water Serves Notice 1 7 2015 Credit where it s due I didn t develop the information I m sharing but it s too good to merely retweet or like My enthusiasm stems from one of the world s most famous influential and capable people bringing widespread attention to typically underappreciated water issues Dairy Collective Reaps Green Energy And Environmental Benefits With Anaerobic Wastewater Technology 9 16 2014 One of the United States newest dairy processing plants features advanced wastewater treatment technology that not only radically improves biomass recovery and effluent quality but also harnesses green energy from waste streams to drive production processes and reduce its carbon footprint Predicting WWTP Sludge Production And Power Savings From Facultative Operation Of Aerobic Digesters 9 4 2014 The objective of this white paper is the prediction of the wastewater treatment plant WWTP sludge production and subsequent power savings realized from

    Original URL path: http://www.wateronline.com/hub/bucket/sludge-and-biosolids-processing-articles (2016-02-14)
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  • Weighing And Remote Monitoring For Reliable Wastewater Treatment
    Utility Management AMR AMI and Metering Asset Management Consumer Outreach Funding Labor Resiliency SCADA Automation Source Water All Source Water Contamination Desalination Water Scarcity Water Reuse Regulations and Legislation Providers YSI a Xylem brand Hach Company Schneider Electric Neptune Technology Group Inc Evoqua Water Technologies Veolia Water Solutions Technologies ABB Measurement Products Aclara Jacobi Carbons Endress Hauser Inc KROHNE Inc Kaeser Compressors Inc Emerson Process Management Rosemount Analytical Degremont Technologies Brentwood Industries View All Providers Case Study January 15 2016 Weighing And Remote Monitoring For Reliable Wastewater Treatment Source Siemens Process Instrumentation Wastewater treatment can be a dirty job but someone has to do it At a Canadian wastewater treatment plant WWTP serving around 75 000 citizens between 240 and 300 cubic meters of digested sludge are treated each and every day Known simply as sludge biosolids are nutrient rich organic materials left over from the wastewater treatment process Since this type of organic material from domestic sewage can t simply be taken to the nearest garbage dump biosolids must be managed to reduce or eliminate pathogens and minimize odors They are therefore carefully monitored in accordance with regulatory requirements Siemens Process Instrumentation Contact The Supplier Contact Details Company Profile

    Original URL path: http://www.wateronline.com/doc/weighing-and-remote-monitoring-for-reliable-wastewater-treatment-0001 (2016-02-14)
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  • Sonoma County Improves Sludge Handling With Screw Press Pump Technology
    long and the sludge must be evenly loaded in each trailer The conveyor moves the sludge to only one point in the trailer and employees had to then manually distribute the sludge to fill it up evenly With a pump sludge could be piped to multiple locations and a system of valves used to fill the trailer evenly A second concern is that a conveyor is open and moves the sludge on a belt resulting in spillage and odor whereas a pump would be totally enclosed in a pipe eliminating both issues A third factor is maintenance All conveyor devices have relatively high maintenance costs for routine replacement of belts and screws as well as bearings and drives The costs increase when long distances must be covered and when the conveyor has to turn a corner or change direction for example each change in direction requires a new motor By contrast with a cake sludge pump only one drive is required and the pump does all the work There are no more belt or conveyor component replacements fewer bearings and fewer motors so maintenance costs tend to be lower Typically if the distance is longer than 50 feet or if there is a need to turn corners or go to multiple points using the pump is more cost effective Progressing cavity pump solution After considering these issues the District selected the progressing cavity pump as the preferred option Working with local pump distributor Flo Line Technology the District sought to take advantage of NETZSCH s sludge cake pumping expertise with progressing cavity pumps Albrecht notes that they he had originally viewed a range of NETZSCH sludge cake handling pumps at a WEFTEC conference NETZSCH pump experts later toured the Sonoma Valley plant and suggested that these pumps would indeed be an excellent fit for the new screw press system NETZSCH and Flo Line then worked with the District and its consulting engineers to provide technical and budgetary information for the sludge cake pumping system They went through several iterations to refine the needs The District then conducted a competitive bidding process as part of the general contract for the solids handling project The specifications were written to provide ideal performance in terms of cake sludge solids percentage pumping pressure and a variety of other design criteria After considering several bids the District ultimately selected the NEMO BF SF Sludge Cake Progressing Cavity Pumps as shown on Figure 1 Figure 1 The pump s enlarged housing has a fully customizable rectangular hopper and force feed chamber for easier entry of the product into the rotor and stator The coupling rod incorporates a patented positioned feed screw that extends over the joints and is always positioned opposite the open cavity of the stator This pushes the sludge cake directly into the open cavity in the shortest possible route It improves the chamber filling by up to 50 percent as compared to other pumps with random positioning of the screw Also included was

    Original URL path: http://www.wateronline.com/doc/sonoma-county-improves-sludge-handling-with-screw-press-pump-technology-0001 (2016-02-14)
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  • Outfitting The World’s Largest And Greenest Wastewater Treatment Plant
    Water Reuse Utility Management AMR AMI and Metering Asset Management Consumer Outreach Funding Labor Resiliency SCADA Automation Source Water All Source Water Contamination Desalination Water Scarcity Water Reuse Regulations and Legislation Providers YSI a Xylem brand Hach Company Schneider Electric Neptune Technology Group Inc Evoqua Water Technologies Veolia Water Solutions Technologies ABB Measurement Products Aclara Jacobi Carbons Endress Hauser Inc KROHNE Inc Kaeser Compressors Inc Emerson Process Management Rosemount Analytical Degremont Technologies Brentwood Industries View All Providers Case Study October 15 2015 AMERICAN Pipe Used In World s Largest And Greenest Wastewater Treatment Plant Source AMERICAN American Cast Iron Pipe Company The sprawling Blue Plains Wastewater Treatment Facility is the largest advanced wastewater treatment plant in the world with a capacity to treat an average of 370 million gallons of sewage a day Some 4 billion in recently completed projects and work now in progress are making the plant more efficient and taking its green operations to new levels Built in the 1930s the facility serves more than 2 million customers in the greater Washington D C Metro Area and its peak daily capacity is 1 billion gallons AMERICAN American Cast Iron Pipe Company Contact The Supplier Contact Details Company

    Original URL path: http://www.wateronline.com/doc/american-pipe-used-in-world-s-largest-and-greenest-wastewater-treatment-plant-0001 (2016-02-14)
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