Septic Systems Articles

  • Wastewater and groundwater

    Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With ...

  • 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 ...


    By IWA Publishing

  • Case study - CAIROX CR potassium permanganate tablets

    PROBLEM Hydrogen sulfide (H2S) results from septic conditions during the collection and treatment of wastewater. H2S has long been recognized as a major problem for municipal wastewater systems. This colorless gas, known for its rotten egg smell, is produced by the biological reduction of sulfates and the decomposition of organic material. It forms at virtually every point in a system ...


    By Carus Corporation

  • 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 (TN, ...


    By IWA Publishing

  • Treatment plants specially designed for cold climates provide a solution for two seasonal cabin complexes in Denali, Alaska

    Grizzly Bear Cabins and Campground in Dcnali, Alaska, needed a larger onsite system to handle a major expansion. Across the road, the undersized system for Dcnali River Cabins complex also needed replacement. Bio-Microbics engineer Reza Shams, Ph.D. helped design engineer Bob Tsigonis, PE., owner of Lifewater Engineering Co. in Fairbanks, to address numerous challenges. Both properties had ...


    By Bio-Microbics, Inc.

  • Septic shouldn’t be a Nightmare for a Dream Home

    Problem In January of 2002, a couple in Homosassa Springs, Florida (near Orlando) had big plans for large new dream home. They had torn down their old Florida “vernacular” home design, or commonly referred to as the “Cracker Style.” They had major setbacks from the beginning due to the lot size and location; they also began construction without out the proper permits ...


    By Bio-Microbics, Inc.

  • Contaminant removal in septage treatment with vertical flow constructed wetlands operated under batch flow conditions

    Individual septic tanks are the most common means of on-site sanitation in Malaysia, but they result in a significant volume of septage. A two-staged vertical flow constructed wetlands (VFCWs) system for the treatment of septage was constructed and studied in Sarawak, Malaysia. Raw septage was treated in the first stage wetlands, and the resulting percolate was fed onto the second stage ...


    By IWA Publishing

  • Application of nano-silver coated granular activated carbon for inactivation of septic tank effluent

    On-site sanitation systems such as cesspools and septic tanks are widely used in most developing countries. These systems primarily aim to collect and treat toilet wastewater or blackwater. Although septic tanks are commonly used in non-sewered areas, their effluents are still rich in pathogens and other pollutants. The practice of direct discharge of septic tank effluents into the surrounding ...


    By IWA Publishing

  • Load limit of a UASB fed septic tank-treated domestic wastewater

    Performance of a 250 L pilot-scale up-flow anaerobic sludge blanket (UASB) reactor, operated at ambient temperatures, fed septic tank effluents intermittently, was monitored for hydraulic retention time (HRT) from 18 h to 4 h. The total suspended solids (TSS), total chemical oxygen demand (CODT), dissolved chemical oxygen demand (CODdis) and suspended chemical oxygen demand (CODss) removal ...


    By IWA Publishing

  • The use of palm kernel shell (PKS) as substrate material in vertical-flow engineered wetlands for septage treatment in Malaysia

    In this study, the treatment of septage (originating from septic tanks) was carried out in a pilot-scale, two-staged, vertical-flow engineered wetland (VFEW). Palm kernel shells (PKS) were incorporated as part of the VFEW's substrate (B-PKS), to compare its organic matter (OM) and nitrogen (N) removal efficiency against wetlands with only sand substrates (B-SD). The results revealed ...


    By IWA Publishing

  • Performance of a system with full- and pilot-scale sludge drying reed bed units treating septic tank sludge in Brazil

    This study investigated the performance of sludge drying reed beds (SDRB) at full- and pilot-scale treating sludge from septic tanks in the city of Belo Horizonte, Brazil. The treatment units, planted with Cynodon spp., were based on an adaptation of the first-stage of the French vertical-flow constructed wetland, originally developed for treating sewage. Two different operational phases ...


    By IWA Publishing

  • Enhanced nitrogen removal with an onsite aerobic cyclic biological treatment unit

    Coastal Zone Act Reauthorization Amendments (CZARA, Section 6217) necessitate the requirement that onsite wastewater disposal units located near impaired surface waters or groundwater to provide at least 50% nitrogen removal. Approximately 38% of Hawaii households use onsite systems including septic tanks and cesspools that cannot meet this requirement. Upgrades to aerobic ...


    By IWA Publishing

  • Passive Wastewater Treatment System Introduced to Colorado - Case Study

    After a homeowner’s septic system failed on a small lot and the homeowner was faced with a large bill for a new system, Virgil Russon of Greeley, Colo., looked for a solution. He did extensive research for alternatives to pipe and stone, and found Advanced Enviro-Septic (AES). The AES System provides advanced treatment of septic effluent to tertiary quality, is completely passive with no ...

  • Case Study: Passive Treatment Provides Solution for Elderly Home

    A recently failed chamber system in poor soil conditions at Víctor Hernández Building Elderly Housing in Puerto Rico forced the company to pump a holding tank weekly. This created a need for a higher level of treatment that would protect and preserve the permeability of the soil.  An Advanced Enviro-Septic (AES) combined treatment and dispersal system from Presby Environmental ...

  • Southside, Arkansas - Case Study

    Rural area faced failing septic tanks in soggy land that didn't perc well. The Problem Failing septic tanks needed to be replaced. Gravity sewers were cost-prohibitive, requiring deep trenches and massive disruption. The Solution E/One's grinder pump stations easily replaced septic tanks. Improving the infrastructure was required in order to spur ...


    By Environment One Corporation

  • Town of Jerusalem, New York case study

    Located on Keuka Lake, in the Finger Lakes region of upstate New York, ageing septic tanks were failing and polluting the lake. The Problem Small properties are located on steep slopes. Gravity sewers were cost-prohibitive, costing twice as much as a pressure sewer system. Lot sizes were too small to install new onsite septic systems. The Solution ...


    By Environment One Corporation

  • Evaluating the effects of septic tank on shallow wells in Iba housing estate, Ojo LGA, Lagos

    Water samples from 30 shallow wells were measured for depth, depth to water table, and distance to septic tank. In situ parameters including electrical conductivity, pH, total dissolved solids, and temperature were measured using portable meters. Chemical parameters including salinity, chloride, calcium, alkalinity and total hardness were determined using titrimetry method. Sulphate and nitrate ...


    By Inderscience Publishers

  • Case study- Septic shouldn`t be a nightmare for a dream home

    Location: Homosassa Springs, Florida Distributor: Wastewater Technologies, Inc. Problem In January of 2002, a couple in Homosassa Springs, Florida (near Orlando) had big plans for large new dream none. They had torn down their old Florida "vernacular" home design, or commonly referred to as the "Cracker Style." They had major setbacks from the beginning due to the lot ...


    By Bio-Microbics, Inc.

  • Case study - KSFA onsite systems classroom training

    Installer: Kansas Small Flows Association Participants Instructor: Allison Biodig, REHS In August of 2009, around 40 participants were able to take part in the KSFA (Kansas Small Flows Association) "Classroom Training" workshop that taught the fundamentals of Drip Irrigation and Sand Filter onsite wastewater septic systems. The workshop, designed as an introduction to onsite systems, is ...


    By Bio-Microbics, Inc.

  • KSFA Info-FLO: “Better than New Septic from Bio-Microbics!“

    Better than New Septic from Bio-Microbics! In Western Kansas, those properties that experience biologically-failed septic systems rarely have options other than to replace the entire system - an expensive endeavor for low-income housing. For a family located in Finney County, the local authorities identified the tell tale signs of a biological failure ...


    By Bio-Microbics, Inc.

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