A device for integrated control of acid wastewater plugging and discharging of an abandoned mine includes an airtight wall, a central controller, a CO.sub.2 gas source, an agent bucket, a siphon pipe I and a liquid storage bucket are arranged on the outer side of the airtight wall, and a plurality of monitoring sensors are arranged in the inner side of the airtight wall, and the monitoring sensors are electrically connected to the central controller; and a flood discharge valve is arranged at the bottom of the airtight wall. The device is miniaturized and operates for a long time with low power consumption, thereby achieving long-term unattended operation and maintenance.

Methods are proposed to define UE behavior for performing synchronization signal block (SSB) based radio link monitoring (RLM) and channel state information reference signal (CSI-RS) based RLM. In a first novel aspect, if CSI-RS based RLM-RS is not QCLed to any CORESET, then UE determines that CSI-RS RLM configuration is error and does not perform RLM accordingly. In a second novel aspect, SSB for RLM and RLM CSI-RS resources are configured with different numerologies. UE perform SSB based RLM and CSI-RS based RLM based on whether the SSB and CSI-RS resources are TDMed configured by the network. In a third novel aspect, when multiple SMTC configurations are configured to UE, UE determines an SMTC period and whether SMTC and RLM-RS are overlapped for the purpose of RLM evaluation period determination.

A hybrid membrane aerated biofilm reactor (MABR) and activated sludge (AS) system and process are described herein. At least a portion of the AS system includes aerobic mixed liquor, for example in an aerobic tank or zone downstream of a tank or zone containing membrane aerated biofilm modules. The flow of air to the membrane aerated biofilm is modulated considering the ammonia loading rate to the system or to the aerobic mixed liquor, for example according to a diurnal cycle. For example, air flow to the membrane supported biofilm can be below an average or initial air flow rate during a period of low ammonia loading. Air flow to the aerobic mixed liquor may remain essentially constants during the same period. Optionally, mixed liquor around the membrane aerated biofilm modules may be aerated during a period of high ammonia loading.

A process water distillation system (10) comprises an evaporator (18), a condenser (34), a compressor (28) configured to generate a desired pressure in at least a region of the process water distillation system (10) and to convey steam from the evaporator (18) to the condenser (34) during operation of the process water distillation system (10), an inert gas source (40) configured to supply inert gas to the process water distillation system (10), and a control device (48) configured to control the supply of inert gas from the inert gas source (40) to the process water distillation system (10) in such a way that, at least in certain operating phases of the process water distillation system (10), an oxygen concentration in the process water distillation system (10) does not exceed a permissible maximum value.

Methods are proposed to define UE behavior for performing synchronization signal block (SSB) based radio link monitoring (RLM) and channel state information reference signal (CSI-RS) based RLM. In a first novel aspect, if CSI-RS based RLM-RS is not QCLed to any CORESET, then UE determines that CSI-RS RLM configuration is error and does not perform RLM accordingly. In a second novel aspect, SSB for RLM and RLM CSI-RS resources are configured with different numerologies. UE perform SSB based RLM and CSI-RS based RLM based on whether the SSB and CSI-RS resources are TDMed configured by the network. In a third novel aspect, when multiple SMTC configurations are configured to UE, UE determines an SMTC period and whether SMTC and RLM-RS are overlapped for the purpose of RLM evaluation period determination.

The present invention discloses a treatment process for a submerged lifting circulation type bio-membrane filter, wherein the treatment process comprises the following steps: two groups of symmetrically staggered filter curtains (2A and 2B) are adopted; the two groups of filter curtains (2A and 2B) are periodically lifted up and down in a reciprocating manner in a biofilter (1) under the action of a lifting mechanism (4), so that bio-membranes on the two groups of filter curtains (2A and 2B) are in contact with the atmosphere and sewage in turns, absorb organic matters in the sewage when lifting down for submerging, absorb oxygen when lifting up and exposing into to the atmosphere, and bring oxygen into the sewage and cause sewage turbulence in a water tank when lifting down for submerging again, so that the dissolved oxygen is uniformly distributed, thereby purifying the sewage.

The present invention relates to a method of driving a ballast water treatment system. The ballast water treatment system includes an air compressor for compressing air, an air receiver tank for storing the compressed air, an oxygen generator for generating oxygen from the air, an oxygen receiver tank for storing the oxygen, an ozone generator for generating ozone from the oxygen, a ballast water pump for pumping ballast water, an inflow line for transferring the ballast water, an ozone injector for injecting the ozone into the inflow line, and a destructor for purging the ozone. The driving method includes a step of pressing a stop button to stop the ballast water treatment system, a step of purging ozone generated in the ozone generator, and a step of stopping each device of the ballast water treatment system.

Disclosed are floating micro-aeration unit (FMU) devices, systems and methods for biological sulfide removal from water/wastewater bodies and streams. In some aspects, a system includes a manifold structure including one or more opening to flow air out of an interior of the manifold structure; one or more support structures connected to the manifold structure, in which the one or more support structures are floatable on a surface of a fluid that includes water or a wastewater; and an air source that flows air to the manifold structure, such that the manifold structure supplies the air containing a predetermined amount of oxygen (e.g., less than 0.1 mg/L of oxygen) to oxidize sulfide of the fluid.

A method and system for self-contained growth and harvesting of plant and animal foodstuffs and energy generation for terrestrial and non-terrestrial uses. The system can be self-contained and sealed from an ambient atmosphere wherein sufficient oxygen and carbon dioxide levels are maintained (bio-regenerative) to support human life. The system and method may utilize aquaculture and hydroponic plant growth with a digester for converting waste into nutrients. Water may circulate among the digester, aquaculture tanks and hydroponic growth tanks. The method may be scalable to support varying quantities of human life. The system and method may generate energy and consume greater quantities of carbon dioxide than generated. The system may be energy self-sufficient utilizing solar, wind or other energy sources such as generated methane gas.

The present invention discloses a novel membrane aerated anaerobic granular sludge reactor, belonging to the technical field of sewage treatment. The reactor solves the problems of low solubility of gas substances in an aqueous solution, large gas-liquid mass transfer resistance and low mass transfer rate. The top of a reactor body is provided with a water outlet, and the middle side wall of the reactor body is provided with a middle water outlet; the middle water outlet of the reactor body is connected with an water inlet of a membrane module; an water outlet of the membrane module is connected with a bottom water inlet of the reactor body through a circulating pump, a water inlet is connected with the bottom water inlet of the reactor body through a feed pump, a high pressure or pressurized gas cylinder outputs high pressure or pressurized gas to the membrane module, and a gas pressure regulating valve is arranged between the high pressure or pressurized gas cylinder and the membrane module. The novel membrane aerated anaerobic granular sludge reactor improves the content of a gas substrate therein, and shortens the formation time of granular sludge. The efficient nitrogen removal and greenhouse gas emission reduction method has higher nitrate and ammonia removal rates and a higher dissolved methane removal rate within a shorter time.