Abstract: A process for producing a heavy metal mediated biochar composite using silicate solidification. Hydrocharis dubia has excellent enrichment of manganese ions in sewage, and is used to treat sewage water to adsorb heavy metals such as lead, manganese and zinc contained in the sewage water into roots, stems and leaves thereof, which are pyrolysed in stages at high temperature with activated red mud and bentonite prior to blending with zeolites, to produce said heavy metal mediated biochar composite; the process significantly extends the migration time of heavy metals, increases the stability of heavy metals and reduces the risk of environmental pollution by heavy metal leakage.

Abstract: A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.

Abstract: A composite biochar for controlling heavy metal pollution and a process for producing the same, in particular enrichment of heavy metals such as arsenic and lead in soil with centipede grass, thereafter centipede grass is sintered with hydroxyapatite, sepiolite and chitosan, and compounded with microorganisms to produce said composite biochar; through the process of the present invention, heavy metals such as arsenic and lead are stably enriched or coated in said composite biochar, significantly reducing the potential hazard of arsenic and lead to the environment, and also providing new developmental ideas for treating heavy metal biomass.

Abstract: A computerized simulation validating method for a full-scale distribution network single phase-to-ground fault test is implemented by simulating a full-scale test system with external quantities being controlled to be conformant and validating the full-scale distribution network single phase-to-ground fault test based on a conformance check result between the internal quantities of the field testing and the internal quantities of the simulation testing. The simulation validating method for a full-scale distribution network single phase-to-ground fault test improves normalization and conformance of the full-scale distribution network ground fault test. The computerized simulation validating system, apparatus, and medium for a full-scale distribution network single phase-to-ground fault test also achieve the benefits noted above.

Abstract: A double-waterway faucet structure is provided. A faucet body comprises a first water inlet passage, a second water inlet passage, and a first water outlet passage configured to be in communication with the first water inlet passage, and the first water outlet passage is connected to a pull-out head. A control valve is disposed on the faucet body and is configured to control a turning ON and OFF between the first water inlet passage and the first water outlet passage. A rotating bracket is rotatably disposed on the faucet body and comprises a second water outlet passage configured to be in communication with the second water inlet passage, and a solenoid valve is disposed on the second water inlet passage to control a turning ON and OFF of the second water outlet passage.

Abstract: The present disclosure provides an ecological governance method based on erosion prevention and control for a gentle slope farmland and relates to the technical field of ecological governance of farmlands. The ecological governance method based on erosion prevention and control for a gentle slope farmland includes the following steps: sampling a gentle slope farmland to investigate erosion thereof; and determining erosion of a gentle slope cultivated land and selecting a corresponding recovery strategy based on a detection result of a sample, a soil quality index (SQI), and a comprehensive vegetation quality index (VQI), where the recovery strategy includes a natural recovery method and a biological-farming comprehensive recovery method; enclosing the gentle slope cultivated land, fallowing the gentle slope cultivated land and reducing tillage; exterminating insect pests and poisonous weeds in the enclosed area; and turning over straws under soil by a cultivator. The growth of poisonous weeds is inhibited.

Abstract: The present invention relates to a composite treatment and recovery technique of polluted water body and soil. Iron-rich straw biomass, after being crushed, is mixed and granulated with sludge, and is pyrolytic charred by programmed heating, to obtain bulk loaded zero-valent iron biochar and sludge biochar composite particles, which are packed as fillers in a filled bed or as filters in filter cells of a fixed bed, for effective recovery of complex polluted water, polluted by heavy metals, organics, nitrogen, phosphorus, and the like.

Abstract: The present disclosure discloses a pull-out faucet. A pull-out flexible hose is a tube-in-tube structure and comprises a first water outlet passage and a second water outlet passage. Each of a water-passing passage, a second water inlet passage, and the pull-out flexible hose is connected to a water-dividing seat so that the first water outlet passage is in communication with the water-passing passage and the second water outlet passage is in communication with the second water inlet passage. A pull-out head is connected to a second end of the pull-out flexible hose and comprises a first water outlet and a second water outlet. The first water outlet is in communication with the first water outlet passage, and the second water outlet is in communication with the second water outlet passage.

Abstract: A kitchen faucet comprises a faucet body, a control valve, a solenoid valve, and a pull-out head. The faucet body comprises a first water inlet pipe, a second water inlet pipe, a first water outlet pipe configured to be in communication with the first water inlet pipe, and a second water outlet pipe configured to be in communication with the second water inlet pipe. The pull-out head is pluggably matched with the faucet body and is in communication with the first water outlet pipe. The control valve is disposed on the faucet body and is configured to control the first water outlet pipe to be opened and closed, and the solenoid valve is disposed on the second water inlet pipe to control the second water outlet pipe to be opened and closed.

Abstract: A double-waterway faucet structure is provided. A faucet body comprises a first water inlet passage, a second water inlet passage, and a first water outlet passage configured to be in communication with the first water inlet passage, and the first water outlet passage is connected to a pull-out head. A control valve is disposed on the faucet body and is configured to control a turning ON and OFF between the first water inlet passage and the first water outlet passage. A rotating bracket is rotatably disposed on the faucet body and comprises a second water outlet passage configured to be in communication with the second water inlet passage, and a solenoid valve is disposed on the second water inlet passage to control a turning ON and OFF of the second water outlet passage.

Abstract: This application discloses a sticker presentation method and apparatus, a computer-readable storage medium, and a terminal and belongs to the field of Internet technologies. The method includes: determining, by a first terminal, a target animation presentation effect matching the target sticker after obtaining a message sending instruction and when detecting that a quantity of target stickers included in a sent target message satisfies an animation presentation condition, the target animation presentation effect indicating a presentation manner of at least one sticker element of the target sticker; and performing, by the first terminal, animation presentation on at least one sticker element of the target sticker on a message presentation interface according to the target animation presentation effect, content of the at least one sticker element being consistent with the target sticker.

Abstract: A method for presenting a multimedia stream including a first audio stream and a second audio stream, comprising: receiving the first audio stream, wherein the first audio stream comprises a set of first audio slices sequentially located therein, wherein each first audio slice comprises a timestamp and a grade value; receiving the second audio stream, wherein the second audio stream comprises a set of second audio slices sequentially located in the second stream, and aligned in time with one of the first audio slice; presenting the first audio stream according to the timestamp of the first set of first audio slices; receiving a set of control commands including a first threshold value; determining whether the first threshold value is lower than the grade value of the first audio slice; and presenting the second audio slice aligned with the first audio slice.

Abstract: Embodiments of this application disclose a sticker presentation method performed at a first terminal. The first terminal moves, after obtaining a drag instruction for a selected target sticker in a sticker selection window, the target sticker according to an obtained drag track, and displays a drop prompt message when moving the target sticker. After obtaining a drag stop instruction for the target sticker in a message presentation interface, the first terminal presents the target sticker at a first target location at which drag stops after receiving a drop confirmation instruction triggered by the drop prompt message. In the embodiments of this application, when a sticker is presented, the sticker is randomly dropped on a message presentation interface. Such a sticker presentation manner is more vivid, interaction manners are more diversified, and a display effect is good.

Abstract: Provided is a method for processing an image in a social networking application, performed by a terminal device. The method includes: receiving an expression file generating instruction corresponding to an image displayed in the social networking application; invoking an expression editing tool built in the application according to the expression file generating instruction obtained after the image is triggered; obtaining a self-made expression image corresponding to the image by using the expression editing tool and an expression editing operation triggered for the image; and generating a self-made expression file that is configured in the social networking application and that corresponds to the self-made expression image, the self-made expression file being invoked by the social networking application to implement a self-configured specified function of the social networking application, and the specified function being different from an expression making function.

Abstract: Embodiments of this application disclose a sticker presentation method performed at a first terminal. The first terminal moves, after obtaining a drag instruction for a selected target sticker in a sticker selection window, the target sticker according to an obtained drag track, and displays a drop prompt message when moving the target sticker. After obtaining a drag stop instruction for the target sticker in a message presentation interface, the first terminal presents the target sticker at a first target location at which drag stops after receiving a drop confirmation instruction triggered by the drop prompt message. In the embodiments of this application, when a sticker is presented, the sticker is randomly dropped on a message presentation interface. Such a sticker presentation manner is more vivid, interaction manners are more diversified, and a display effect is good.

Abstract: This application discloses a sticker presentation method and apparatus, a computer-readable storage medium, and a terminal and belongs to the field of Internet technologies. The method includes: determining, by a first terminal, a target animation presentation effect matching the target sticker after obtaining a message sending instruction and when detecting that a quantity of target stickers included in a sent target message satisfies an animation presentation condition, the target animation presentation effect indicating a presentation manner of at least one sticker element of the target sticker; and performing, by the first terminal, animation presentation on at least one sticker element of the target sticker on a message presentation interface according to the target animation presentation effect, content of the at least one sticker element being consistent with the target sticker.

Abstract: The present disclosure discloses a method for controlling a sticker classification identifier performed at a computing device. The computing device displays an instant messaging user interface including a user input region and a sticker messaging option. After detecting a user selection of the sticker messaging option, the computing device updates the instant messaging user interface by displaying a sticker panel below the user input region, the sticker panel including one or more sticker classification identifiers, each sticker classification identifier further including one or more stickers.