Vertical tanks
High-density, crosslink or FDA-compliant linear polyethylene vertical storage tanks from Assmann Corp. of America have molded-in manways and gallon marks. One-piece seamless construction and uniform wall thickness enable the 40- to 12,000-gallon tanks to resist chemicals and corrosion. They are UV stabilized and certified to NSF/ANSI Standard 61. Accessories include fittings, heat tracing, insulation, gauges, tie downs, and ladders. Custom designs are available. 888/357-3181; www.assmann-usa.com.
Linear electro-dewatering
Installed after mechanical dewatering units, the CINETIK line of linear electro-dewatering solutions from EIMCO Water Technologies uses controlled mechanical pressure and electro-osmosis to produce 50 percent total solids for even secondary and mixed biological sludge. An electrical field generated inside the sludge induces the electro-osmosis. The equipment has fingertip operation, adjustments for varying sludge characteristics and parameters, and integrates with existing processes and equipment. The compact, energy-efficient units also reduce pathogen levels. 512/834-6000; www.eimcowatertechnologies.com.
Fiberglass basins
Topp Industries Inc. has 96- and 120-inch fiberglass sump and sewage basins manufactured to ASTM D3753. Their inside diameters measure18 to 120 inches. The 96-inch basins hold 3,008 to 7,520 gallons; the 120-inch diameter basins hold 4,700 to 11,750 gallons. 800/354-4534; www.toppindustries.com.
Headworks plants
Constructed from 304-stainless steel, packaged headworks plants from Hi-Tech Environmental Inc. arrive partially assembled with screening, grit collection, screening washing, shaftless flighting, segmented replaceable screen brushes, and weather protection. Systems are tested in-house before shipping. The self-contained tanks have a flanged inlet and outlet. 800/264-7005; www.hi-techenv.com.
Heating solution
The PSX inline direct steam injection heater from ProSonix LLC heats viscous wastewater sludge in anaerobic digestion. The inline design and angled steam injector eliminate plugging and hang-ups. The steam diffuser’s variable flow plug controls the mass flow, while the plug’s integral pneuma-tic actuator controls its position. Internal modulation injects steam at sonic velocity to ensure complete condensation and mixing in difficult-to-heat fibrous slurries.
Integrating the heater and 1 to 2 psig liquid pressure drop reduce energy demand and minimizes process upsets. Units handle 1 to 10,000 gpm with temperature control of plus or minus 1 degree. Heaters are constructed of 316-stainless steel or carbon steel with wear coatings for aggressive fluid applications. 800/849-1130; www.pro-sonix.com.
Internally fed drum screen
The internally fed drum screen on the TurboDrum IF from Headworks Inc. has 0.25mm openings for fine liquid-solid separation. The heavy-duty screen removes hair, fibers and suspended material, and works well when paired with membrane bioreactors, package treatment plants, and 15.2-mgd sludge dewatering and thickening processes. 877/647-6667; www.headworks usa.com.
Oil-water separator
The portable SS-MEGA-OWS stainless steel coalescing oil-water separator from Megator Corp. handles various viscosities, temperatures, chemicals, and flows of 125 gpm. 412/963-9200; www.megator.com.
