Boston, MA – Practical Applications, Inc. (PAI), a leading environmental company, has designed and built a Metal Precipitation System for SPIECAPAG, a subsidiary of ENTREPOSE Contracting. Esso Highlands Limited (a subsidiary of Exxon Mobil Corporation) is the operator of the Papua New Guinea Liquefied Natural Gas Project (PNG LNG) and will use the system to treat wastewater from the PNG LNG Project.

The PAI 1878 pH Adjustment and Metal Precipitation skid-mounted batch reactor is designed to treat alkaline and acid wastewater with heavy metal contaminants. The pH is adjusted in the final sequence to achieve the permissible discharge limits.
The portable, skid-mounted system is composed of the following equipment: one conical reactor vessel, one mixer, four chemical suction stations, four metering pumps two pH/temperature sensors, one pH analyzer, one flow meter with flow totalization, two electrically-actuated ball valves, two continuous capacitance level sensors (one operating and one spare), four drum low-level detector indicators, two spill containment pads, and one main control panel. The Metal Precipitation System is completely wired and plumbed for use, with only minor modifications required on-site. Likewise, the chemical metering pumps are cord and plug connected to allow for maintenance and easy set-up.

The PAI 1878 Metal Precipitation System is designed to operate automatically in batch processing mode. The Operator Interface Terminal (OIT) displays the tank pH, effluent pH and flow. The OIT tracks the number of batches the reactor has processed, allows for user modification of set points, and indicates alarm/abnormal conditions. The system is designed to operate automatically with only minimal operator interaction beyond reagent refill and inspections/maintenance.

PAI has been designing, building, and operating wastewater treatment systems since 1994. Our systems are designed and built by operating engineers and technicians who understand that an effective system must ensure optimal performance while remaining economical and competitive.

Press Contact:
Wiwa Deepreecha
Practical Applications, Inc.
Boston, MA 617-423-5639
wiwa@pai-online.com

Boston, MA – Leading environmental firm Practical Applications, Inc. (PAI) has been awarded the contract to build the central wastewater treatment system for the plant expansion project at Tribe Foods, Inc., a subsidiary of Nestle, SA.

Tribe Foods Wastewater Treatment System - DAF Unit supplied by Krofta

Wastewater generated during food manufacturing operations is controlled using Dissolved Air Flotation. Designed to meet strict Massachusetts sewer discharge limits, wastewater in the system is continuously treated at 50,000 gallons per day with peak flows of 200 gallons per minute.

Composed of a 12,000 gallon equalization tank, pH Neutralization controls, coagulant and polymer dosing, rotary drum screening, and sludge dewatering, the system incorporates PAI’s automatic control package and integrated expert knowledge software to predict and prevent system upset. The system is housed in a custom-built 400 square foot packaged steel building.

PAI has been designing, building, and operating wastewater treatment systems since 1994. Our systems are designed and built by operating engineers and technicians who understand that an effective system must ensure performance while remaining economical to operate and maintain.