مسرد بيئي Z

المعجم البيئي مشروع قيد العمل يحتاج ترجمة وإضافات

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• Z Chlor™ Chlorine and sul.te measurement and control unit by Bailey-Fischer &
• Porter. ZD See “zero discharge (ZD).” zebra mussel Freshwater mollusk that can foul water intake systems, treatment
• plants, and piping by attaching itself to a solid structure, eventually restricting
• .ow. ZeeWeed® Membrane bioreactor technology by Zenon Environmental, Inc. Zenobox Membrane .ltration system by Zenon Environmental, Inc. Zeno.oc Polymer control system for belt .lter press by Zenon Environmental, Inc. ZenoGem® Membrane bioreactor treatment process for tertiary treated wastewater
• by Zenon Environmental, Inc. Zeo-Karb® Sulfonated coal cation exchange process by USFilter/Warren. Zeol™ Rotor concentrator for VOC abatement by Munters Zeol Corp. zeolite Minerals or synthetic resins that have ion exchange capabilities. zeolite softening Water softening process using a zeolite resin bed to accomplish
• ion exchange. Zeo-Rex® Oxidizing .lter for iron and manganese removal by USFilter/Warren. Zephyr® Cartridge-type air .lter by Farr Co. Zephyr™ Induced air .otation system by Aeromix Systems, Inc. zero discharge (ZD) A facility that discharges no material to the environment. zero liquid discharge (ZLD) A facility that discharges no liquid ef.uent to the
• environment. zero ODP Zero ozone depletion potential. zero order reaction A reaction in which the rate of change is independent of the
• concentration of the reactant. zero population growth (ZPG) The situation where the birthrate is constant and
• equal to the death rate. zero soft water Water having less than 1.0 grain per gallon as calcium carbonate. Zerofuel Fluidized bed sludge incinerator by Seghers Better Technology USA. zeta potential (ZP) The voltage differential between the surface of the diffuse
• layer surrounding a colloidal particle and the bulk liquid beyond. Zetag® Cationic polyelectrolytes by Ciba Specialty Chemicals. Zeta-Pak Cartridge .lter by Alsop Engineering Co. Zickert Product line of Waterlink, Inc. ZID See “zone of initial dilution (ZID).”

• Zimmerman Process Wet air oxidation process by USFilter/Zimpro.
• Zimpress Plate and frame sludge press by USFilter/Zimpro.
• Zimpro Environmental Former name of USFilter/Zimpro.
• Zimpro Process Thermal sludge conditioning process by USFilter/Zimpro.
• ZLD See “zero liquid discharge (ZLD).”
• Z-list OSHA’s tables of toxic and hazardous air contaminants.
• Z-metal Pearlitic malleable iron chain material by USFilter/Envirex.
• ZOC See “zone of contribution.”
• ZOI See “zone of incorporation.”
• zone of aeration The comparatively dry soil or rock located between the ground surface and the top of the water table.
• zone of contribution (ZOC) The area surrounding a pumping well that includes all areas that supply water to recharge the well.
• zone of incorporation (ZOI) The depth to which soil on a landfarm is plowed or tilled to receive wastes.
• zone of initial dilution (ZID) The part of a lake or river where a discharge from an outfall .rst mixes with the receiving waters.
• zone of saturation The portion of the earth’s crust below the water table where the pores are .lled with water at greater than atmospheric pressure.
• zooglea A gelatinous matrix developed by growing bacteria associated with trick­ling .lter beds and activated sludge .oc.
• zooplankton Small aquatic animals that possess little or no means of propulsion.
• ZP See “zeta potential (ZP).”
• ZPG See “zero population growth (ZPG).”
• ZRL Zero risk level.

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