Abstract: The present disclosure relates to a device and method for degrading chlorinated hydrocarbon (CHC) in polluted groundwater. A preparation method for each of glass tubes and the method for degrading CHCs are as follows: uniformly mixing 55-85 wt % of Bi2O3, 5-15 wt % of B2O3, and 10-30 wt % of SrCO3, putting into a corrosion resistant crucible, holding at 1,050-1,300° C. for 15-45 min, forming into a glass tube, and holding the glass tube at 200-400° C. for 1-3 h, followed by annealing; soaking the inner wall of the glass tube for 10-30 min with a HCl solution with a concentration of 0.02-0.2 mol/L, washing with water, and providing an ultraviolet lamp to obtain a self-cleaning glass tube; guiding CHC-containing groundwater to the self-cleaning glass tube, turning on the ultraviolet lamp, and carrying out ultraviolet irradiation for 1-8 h, thereby effectively removing the CHCs.

Abstract: The present invention relates to a continuous on-board drying method for Antarctic krill and a continuous on-board processing method of shelled Antarctic krill. The drying method includes the following steps: 1) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen; 2) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; 3) hot-air drying; 4) impurity removal by vacuum; 5) cooling to obtain dried krill. The processing method includes the following steps: a) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen; b) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; c) hot-air drying; d) subjecting the dried krill to shelling treatment to separate shell from meat, to obtain shelled krill; e) impurity removal by vacuum to obtain shelled krill product.

Abstract: The present invention relates to a continuous on-board drying method for Antarctic krill and a continuous on-board processing method of shelled Antarctic krill. The drying method includes the following steps: 1) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen, 2) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; 3) hot-air drying; 4) impurity removal by vacuum; 5) cooling to obtain dried krill. The processing method includes the following steps: a) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen; b) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; c) hot-air drying; d) subjecting the dried krill to shelling treatment to separate shell from meat, to obtain shelled krill; e) impurity removal by vacuum to obtain shelled krill product.

Abstract: The present invention relates to a continuous on-board drying method for Antarctic krill and a continuous on-board processing method of shelled Antarctic krill. The drying method includes the following steps: 1) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen; 2) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; 3) hot-air drying; 4) impurity removal by vacuum; 5) cooling to obtain dried krill. The processing method includes the following steps: a) subjecting fishing materials to cleaning, sorting, and dewatering with a vibrating screen; b) rapidly heating the krill to the temperature of up to 70° C. using infra-red rays; c) hot-air drying; d) subjecting the dried krill to shelling treatment to separate shell from meat, to obtain shelled krill; e) impurity removal by vacuum to obtain shelled krill product.