Modified loess modular filler filtering system applied to northwest regions

• Main Authors: WANG JIAHUAN, LI HUILI, HE FURONG, ZHANG WEIHAO, YANG ZIXIAN, YANG YUETING, ZHANG BAO
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2020
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a modified loess modular filler filtering system applied to northwest regions. The system comprises a hydrolysis acidification pool and a filtering pool which are buried underground, and an automatic control system operation cabinet arranged on the ground. A water inlet pipe is arranged at the upper part of one side of the hydrolytic acidification tank and connected with the filtering pool; a water distribution area, a filler area and a clear water area are sequentially arranged in the filtering pool from bottom to top; a sludge discharge pipe is arranged on one side of the water distribution area and is connected with a sludge pump; a gas distribution pipe is arranged at the bottom of the water distribution area, and a microporous aeration disc is arranged on thegas distribution pipe; a packing area is formed by arranging a plurality of modular packing units in series or in parallel; the modular packing unit is internally composed of loess-based modified filler and semi-soft filler;