Method for deep treatment of high-salinity industrial organic wastewater with plant composite bed

[0008] Embodiment 1: the comparative experiment of specific plant

[0009] Hongfengxing Chemical (Shenzhen) Co., Ltd. mainly uses the emulsion polymerization process to engage in the production of various water-based adhesives. During the production process, a small amount of high-concentration organic wastewater will be produced, and the main pollution index COD=5000~15000mg·L -1 , and BOD / COD-1 , and then add an appropriate amount of sodium chloride and sodium sulfate, so that the salt content in the waste water is 2% to 3%, and it is used as the influent of the plant composite bed.

[0010] Using 10 identical cylindrical containers (bottom area is 0.2m 2 ), put in gravel packing with a height of 60cm, and spread a layer of river sand under the packing for uniform water distribution. A water inlet pipe with a diameter of 2cm is set at a distance of 5cm above the filler. The water inlet pipe is connected to the nozzle, and there are holes with a diameter of 2.00mm on it. The...

[0017] Embodiment 2: application example of plant composite bed

[0018] Hubei Province Jingmen City Gurun Technology Co., Ltd. mainly produces ultraviolet photoinitiators, and the main pollution index of production wastewater COD=10000~20000mg·L -1 , the salt content is 2%~3%. After pretreatment, the main pollution index of wastewater COD=200~400mg·L -1 , and the salt content is 0.4% to 0.8%, which is used as the influent of the plant composite bed.

[0019] Table 2 Treatment effect table of plant composite bed

[0020]

[0021] The area of ​​the plant compound bed of Jingmen Gurun Technology Co., Ltd. in Hubei Province is 500m 2 , the adsorption filler is activated carbon + river sand (volume ratio 1:1), and the planted plants are mixed interplanted plants of salicornia, mulberry, and palmetto, and the daily sewage treatment capacity is 75 tons. Table 2 records the measured data values ​​of the company's plant compound bed in June, July, and August of 2014. From Table ...