Septic and Sewer Systems

Septic and Sewer Systems

Remediators help recover failing systems

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Remediators help recover failing systems

Problem: Woodland Park, a trailer park in Charlemont, Massachusetts, consisted of 25 lots and a single-family residence. Replacement of the 24-year-old septic systems was cost-prohibitive.

Solution: To solve the issue, several Aero-Stream Remediators were installed in the failing systems. A Remediator was installed in one system in 2011, with two more systems in 2014. The remediation systems are designed to resolve septic system issues and eliminate concrete tank degradation caused by hydrogen sulfide gas.

Result: Installation of the Remediators brought the failing systems into compliance and saved the park owner over $100,000. The soil absorption systems were determined recovered, with a Certificate of Compliance issued in 2016. 877-254-7093; www.aero-stream.com.


Treatment system helps facility  come into compliance

Problem: Twenty miles northwest of Boston, the rural town of Stow, Massachusetts, is home to the Meeting House at Stow elderly care community. When the facilities’ previous wastewater treatment plant failed to meet permit for a prolonged period, the Massachusetts Department of Environmental Protection issued an administrative consent order requiring the facility to correct its noncompliant discharge to the groundwater.

Solution: The solution was to replace the failed activated sludge-based process with a more robust and reliable fixed-film process. The new system was permitted under Massachusetts Groundwater Discharge pollution control regulations requiring the system to meet a standard of less than 10 mg/L total nitrogen. The project engineer Martinage Engineering Associates selected an Aquapoint Bioclere treatment system for its proven nitrification and denitrification performance capability, energy efficiency and low life cycle costs. In order to retain heat in the process and enhance removal efficiencies, the trickling filters are ventilated with warm air from the process control building. Effluent from the biological process is polished through a sand filter and UV disinfection prior to groundwater discharge.

Result: The system reduced BOD from a high of 21.6 mg/L in October 2011 to an average of 10.5 mg/L. Also, TSS was reduced from 11 mg/L to an average of 5.2 mg/L. Total nitrogen was also significantly reduced from 65 mg/L to an average of 3.7 mg/L. 508-985-9050; www.aquapoint.com.


Lake home uses bed system for treatment

Problem: A three-bedroom home on Tuttle Creek Lake in Riley County, Kansas, needed to be replaced. The original system, a sand bed installed in the 1970s, had been damaged beyond repair by overgrown trees and brushes; and root intrusion had damaged the pipes. The homeowner didn’t know where the original system was located and wanted a replacement system that wouldn’t require costly maintenance but would provide treatment to protect the nearby lake.

Solution: Tim Schlatter of Alternative Systems of Kansas was able to find the location of the original system and designed a bed system using Eljen GSF, Geotextile Sand Filter, modules in its place. The system consists of 27 A42 modules installed on top of ASTM C33 sand and is gravity-fed.

Result: The system is able to protect the nearby lake by pretreating the effluent to NSF Standard 40, and was quickly installed. The homeowner is happy with the result. 800-444-1359; www.eljen.com.


Mounded sand filter system replaces failing Colorado septic system

Problem: Following their purchase of a five-bedroom home in Centennial, Colorado, the homeowners were notified by the Tri-County Health Department that the septic system was red-tagged due to effluent surfacing from the drainfield. Scott Kellogg of Douglas County Septic and Kate Carney, P.E., of CHURCH Onsite Wastewater Consultants recognized that groundwater and runoff from the property were collecting in the drainfield area and that the constricted site and low-permeability, sandy clay loam soils posed a significant challenge to a solution.

Solution: With no area on the site to accommodate a new drainfield, Carney designed a mounded pressurized sand filter system that could be installed in the footprint of the existing drainfield. Wastewater flows from the house to a 2,000-gallon septic tank. The on-demand pump in the tank’s third compartment discharges 84 gallons per dose to the automatic distribution valve, or ADV, installed inside an insulated riser to prevent freezing. The ADV alternates dosing to six zones in the 3,672-square-foot mounded Quick4 Plus Low Profile Chamber drainfield from Infiltrator Water Technologies. Each zone includes two 102-foot-long rows of 25 chambers and 1.25-inch PVC laterals with 1/8-inch orifices drilled on 36-inch centers suspended in the chambers at the 12-o’clock position. Site backfilling, grading and a swale divert runoff away from the drainfield. Underground drainpipes collect and divert roof runoff.

Result: Installation took 12 days, and the homeowner remained connected to the old system until the new tank was connected. Douglas County Septic will monitor the system biannually and maintain as needed. 800-221-4436; www.infiltratorwater.com.



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