Septic Systems Articles
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Evaluation of nutrient retention in vegetated filter strips using the SWAT model
Nutrient fluxes in stream basins need to be controlled to achieve good water quality status. In stream basins with intensive agricultural activities, nutrients predominantly come from diffuse sources. Therefore, best management practices (BMPs) are increasingly implemented to reduce nutrient input to streams. The objective of this study is to evaluate the impact of vegetated filter strip ...
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Effectiveness of septage pre-treatment in vertical flow constructed wetlands
Septage is wastewater stored temporarily in cesspools. A periodic supply of its significant quantities to small municipal wastewater treatment plants (WWTPs) may cause many operational problems. In the frame of the research, it has been proposed to utilize vertical flow constructed wetlands for pre-treatment of septage prior to its input to the biological stage of a WWTP. The aim of the work ...
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Vacuum Truck Customization
When it comes to vacuum trucks, we understand that businesses need them for many different purposes, whether they’re for car washes, septic systems, restaurants or different types of fuel, just to name a few. Here at Amthor International, we offer vacuum trucks that can be used for any of these applications. We strive to ensure that our vacuum trucks will meet the specific needs of each ...
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The Flushability of Flushable Wet Wipes
Whether used to remove cosmetics, clean a baby or wipe food and debris from the kitchen counter, a growing number of consumers are purchasing flushable wet wipes for their household needs. In fact, The Atlantic reported personal wet wipe sales reached an estimated $2.2 billion last year, and Euromonitor International’s market tracker predicts 3-percent growth in sales volume of wet wipes ...
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Minnesota debates phosphorus discharge limits for improved water quality
City leaders across the Minnesota River Basin are protesting proposed phosphorus standards, which they contend will be too expensive and have little or no effect on water quality. In January, 41 of the 147 Minnesota cities in the basin outlined their objections in a letter to the governor and the Minnesota Pollution Control Agency. Many of these cities’ wastewater treatment plants ...
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A combined reed bed/freezing bed technology for septage treatment and reuse in cold climate regions
A combined reed bed-freezing bed (RB-FB) technology was effective at treating septage under Canadian climatic conditions over a 5-year period with average loading rates of 82–104 kg TS/m2/y. Varying hydraulic and solid loading rates as well as the increasing sludge cake with time had little to no effect on treatment efficiency, with almost complete removal of organic matter, solids, heavy ...
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Assessment of the technological reliability of a hybrid constructed wetland for wastewater treatment in a mountain eco-tourist farm in Poland
The aim of the present study was to assess the technological reliability of a domestic hybrid wastewater treatment installation consisting of a classic three-chambered (volume 6 m3) septic tank, a vertical flow trickling bed filled with granules of a calcinated clay material (KERAMZYT), a special wetland bed constructed on a slope, and a permeable pond used as a receiver. The test treatment ...
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Types and distribution of improved sanitation technologies in sub-Saharan Africa
Access to improved sanitation technologies in sub-Saharan Africa (SSA) is very low. Despite the importance of improved sanitation technologies in sanitation monitoring, little attention has been given towards the types and distributions of improved sanitation technologies used in SSA. This paper presents an analysis of the distribution of improved sanitation technologies in SSA, with ...
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Start-up phase of a UASB-septic tank used for high strength municipal wastewater treatment in Mexico
The objective of this work was to assess the performance during the start-up phase of a Upflow anaerobic sludge blanket (UASB)-septic tank for municipal wastewater treatment in Mexico City. A lab scale UASB-septic tank (62 L total volume, acrylic), consisting of three chambers treated high strength municipal wastewater at ambient temperature (16 °C–24 °C), under 72 h Hydraulic retention time ...
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Alternative collection systems for decentralized wastewater management: an overview and case study of the vacuum collection system in Eretria town, Greece
In small and rural communities, the installation cost of conventional gravity-flow collection systems is often very expensive due to the presence of rocky terrain, high water table, unstable soils, extremely flat terrain, which may impose substantial difficulties in construction. Pressure, vacuum and septic tank effluent gravity collection systems are among the alternatives sewers used most ...
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Characterisation of septage in partially sealed cesspit
The alteration of wastewater from an individual home under anaerobic conditions in a partially sealed cesspit over the filling period of four months, and the pollution fluxes were assessed. The septage was much more concentrated than raw wastewater. A mass balance found percentage (%) removal rates for biological oxygen demand (BOD5, 78%), chemical oxygen demand (COD, 62%), total nitrogen ...
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The application of moving bed biofilm reactor to denitrification process after trickling filters
The paper presents research of a prototype moving bed biofilm reactor (MBBR). The device was used for the post-denitrification process and was installed at the end of a technological system consisting of a septic tank and two trickling filters. The concentrations of suspended biomass and biomass attached on the EvU Perl moving bed surface were determined. The impact of the external organic ...
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Effect of filter media thickness on the performance of sand drying beds used for faecal sludge management
The effect of sand filter media thickness on the performance of faecal sludge (FS) drying beds was determined in terms of: dewatering time, contaminant load removal efficiency, solids generation rate, nutrient content and helminth eggs viability in the dried sludge. A mixture of ventilated improved pit latrine sludge and septage in the ratio 1:2 was dewatered using three pilot-scale sludge ...
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Sludge Blanket Theory: Digging deeper
With over 50 years of design and manufacturing experience, we are rightly proud of our British-built environmentally friendly SludgeWatch 715 Sludge Blanket Detector. Our user-friendly design is highly portable, simple to use and along with its low cost has worldwide appeal. Things have changed somewhat since our first Sludge Blanket Detector was made back in 1974. No more messy man-handling of ...
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An overall idea on domestic waste water treatment
Before suggesting any advice or guidance on domestic wastewater treatment, let us first learn its meaning. Wastewater is the term that relates to the description of waste water in terms of sewage waste or industrial liquid waste collected is cities and towns and treated at urban waste treatment plants along with the sewages that is generated from single houses in the rural areas and are treated ...
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Phosphate treatment by onsite wastewater systems in nutrient-sensitive watersheds of North Carolina's Piedmont
The goal of this study was to gain a better understanding of the PO4-P treatment efficiency of onsite wastewater systems (OWS) installed in nutrient-sensitive watersheds of the North Carolina Piedmont. Four OWS including two conventional and two single-pass sand filter (SF) systems were evaluated at sites with clay-rich soils. Piezometers were installed near all of the OWS, and down-gradient ...
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Case Study - Groundwater Discharge Permit - Plymouth, Massachusetts
The process of obtaining a groundwater discharge permit for a subdivision scale septic absorption system was faciliated by using the advanced GIS features within EnviroInsite. Geologic features were downloaded and presented at the site scale along with the subdivision boundary and potential downgradient receptors. A cross-section was created showing the detailed soil descriptions, water levels ...
By EI LLC
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Fats, Oils & Grease - Dothan, Alabama - Case Study
F.O.G. Removal in the Collection System By pre-treatment DO;E Little John Digesters reduce F.O.G. deposits by 73.4%. PROBLEM: The City of Dothan, Alabama, faces the same issues that almost all municipalities are attempting to solve, that is, the removal of F.O.G. deposits and preventing its recurrence from "clogging up" their treatment systems. One of Dothan's major issues personnel faced at ...
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Responses to Internet misinformation
How do people figure out what is accurate and what is not? Science, involving diverse researchers reviewing data and repeating experiments, is the basis for understanding reality. Biosolids recycling has been the subject of such science. And we point to that science on our website, letting our readers decide. Recent Internet postings by Joseph Mercola, David Lewis, and others* - who imply ...
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What will it take to get plastics out of the ocean?
From drones to filters to artificial islands, innovators are working to reduce the threat thousands of tons of trash pose to marine ecosystems. A few palm trees stand strong in the salty breeze. Located on the southern tip of the Pacific island chain of Hawaii, Kamilo Beach is an isolated stretch of black volcanic shoreline in the middle of nowhere. Just a few hundred yards from shore, humpback ...
By Ensia
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