Constructed wetland for treating heavy metal wastewater

• Main Authors: CHENG LIJIANG, GAO HUAXI
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2013
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model discloses a constructed wetland for treating heavy metal wastewater. The constructed wetland comprises a reaction tank (17), a water inlet (4), a water inlet tank (2), a water outlet tank (16), a water inlet tube (1) and a water outlet tube (15), wherein the water inlet tank (2) is arranged at the left side of the reaction tank (17); the water outlet tank (16) is arranged at the right side of the reaction tank (17); the water inlet (4) is formed in the right side of the bottom of the water inlet tank (2); the water inlet tube (1) is arranged at the left side of the top of the water inlet tank (2); the water outlet tube (15) is arranged on the middle part of the right side of the water outlet tank (16). the constructed wetland is characterized in that aquatic plant (7), a fine sand filler layer (6), a zeolite filler layer (10), a melon seed-shaped drug slice filler layer (11) and an aggregate filler layer (12) are arranged on the inner part of the reaction tank (17) from top to bottom in sequ