US 11,926,538 B2
Wastewater treatment method and apparatus based on hydrate-based water vapor adsorption
Yongchen Song, Liaoning (CN); Lunxiang Zhang, Liaoning (CN); Huilian Sun, Liaoning (CN); Zheng Ling, Liaoning (CN); Jiafei Zhao, Liaoning (CN); Lingjie Sun, Liaoning (CN); Lei Yang, Liaoning (CN); Mingjun Yang, Liaoning (CN); Yu Liu, Liaoning (CN); Weiguo Liu, Liaoning (CN); Yanghui Li, Liaoning (CN); Xiang Sun, Liaoning (CN); and Lanlan Jiang, Liaoning (CN)
Assigned to DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
Filed by DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
Filed on May 10, 2023, as Appl. No. 18/315,484.
Claims priority of application No. 202210516883.6 (CN), filed on May 13, 2022.
Prior Publication US 2023/0365430 A1, Nov. 16, 2023
Int. Cl. C02F 1/04 (2023.01); B01D 1/30 (2006.01); B01D 5/00 (2006.01); B01D 9/00 (2006.01); C02F 101/20 (2006.01); C02F 103/16 (2006.01)
CPC C02F 1/048 (2013.01) [B01D 1/30 (2013.01); B01D 5/0006 (2013.01); B01D 5/0051 (2013.01); B01D 5/006 (2013.01); B01D 9/0013 (2013.01); B01D 9/0031 (2013.01); C02F 2101/20 (2013.01); C02F 2103/16 (2013.01); C02F 2209/02 (2013.01); C02F 2209/03 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A wastewater treatment apparatus based on hydrate-based water vapor adsorption, comprising: a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system, wherein
the wastewater evaporation zone comprises a reactor, a magnetic stirrer, a waste liquid tank, and a wastewater storage tank; the reactor is divided into a wastewater evaporation chamber and a hydrate formation and decomposition chamber; an upper part of the wastewater evaporation chamber is communicated with an upper part of the hydrate formation and decomposition chamber; the wastewater storage tank is connected to the wastewater evaporation chamber of the reactor; the magnetic stirrer is arranged in the wastewater evaporation chamber; a bottom of the wastewater evaporation chamber is connected to the waste liquid tank;
the hydrate formation zone comprises a wall scraping device, a cooling wall surface, a gas cylinder, a pressure sensor, and a temperature sensor; the gas cylinder is connected to the reactor; the pressure sensor and the temperature sensor are arranged in the reactor to monitor a reaction environment in the hydrate formation and decomposition chamber; the wall scraping device is arranged in the reactor to act on the cooling wall surface and is configured to scrape off a hydrate crystal formed by water vapor and condensed water of the water vapor with a gaseous hydrate former on the cooling wall surface;
the hydrate decomposition zone comprises the hydrate formation and decomposition chamber of the reactor, a fresh water tank, and a gas recovery device; the hydrate crystal scraped off by the wall scraping device falls to a bottom of the hydrate formation and decomposition chamber of the reactor; the gas recovery device is connected to the hydrate formation and decomposition chamber and is configured to collect the gaseous hydrate former after decomposition of the hydrate crystal to achieve recycling of the gaseous hydrate former; the fresh water tank is connected to the bottom of the hydrate formation and decomposition chamber and is configured to collect fresh water after the decomposition of the hydrate crystal; and
the data acquisition and control system comprises a data acquisition device and a computer control system; the pressure sensor and the temperature sensor in the reactor are connected to the data acquisition device to detect pressure and temperature changes in a wastewater treatment process inside the reactor; and the computer control system controls a wall scraping motion of the wall scraping device and a temperature adjustment of the cooling wall surface.