GM foods are classified into one of three generations. First-generation crops have enhanced input traits, such as herbicide tolerance, better insect resistance, and better tolerance to environmental stress.
Types of systems. There are multiple systems by which water treatment systems companies can remove contaminants from water. Point of entry systems: Point of entry water treatment systems are able to treat all of the water entering a home or business and are installed after a water meter or storage tank.
Zero Liquid Discharge (ZLD) ZLD is a term used to describe a method of opera-tion that results in the elimination of liquid wastes leaving a water treatment plant. In a conventional surface or groundwater treatment plant, the principal liquid waste is the filter backwash.here are three general types of equip-ment for a brine ZLD system: â¢ B rine concentrator â Also known as a brine evaporator. The concentrator reduces the original brine volume by 95 to 98 percent, and effluent is a two-phase solution â a high TDS liquid and crystalline salt particles.