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149results about How to "Reduce cost burden" patented technology

Treatment method of heavy metal wastewater

ActiveCN103265151AExpand pool capacityIncrease project costMultistage water/sewage treatmentChemistryHeavy metals
The invention discloses a treatment method of heavy metal wastewater. The treatment method of heavy metal wastewater comprises the following steps of: delivering heavy metal wastewater supernatant liquor subjected to pretreatment into an A3O biochemical reaction system comprising a hydrolytic acidification reaction tank, an oxygen-poor denitrification reaction tank, an oxygen-poor dephosphorization reaction tank and an activated sludge tank; delivering effluent into a heavy metal membrane reactor, adding obligate bacteria for degrading organic matters in the reactor; and refluxing the wastewater in the heavy metal membrane reactor at intervals into the oxygen-poor dephosphorization reaction tank. According to the treatment method, the A2O biochemical treatment process is replaced by the A3O biochemical treatment process, the reflux ratio is adjusted, and the effects of reducing chemical oxygen demand (COD) of the biochemical system, adsorbing heavy metal, denitrifying and dephosphorizing without increasing the hydraulic retention time, the tank volume and the project cost are strengthened; and besides, a secondary sedimentation tank is replaced by M-MBR, the concentration of activated sludge and the biochemical reaction rate are improved, the COD and BOD are further reduced, and the equipment and process are simple. The treatment method can be popularized and applied on a large scale.
Owner:GUANGDONG XINDAYU ENVIRONMENTAL PROTECTION TECH CO LTD +1

Method for integrated management of messages and electronic device implementing same

Various embodiments provide an electronic device and method therefor, the electronic device including: a display; at least one communication circuit configured to perform wireless communication with an external electronic device using one of a plurality of communication protocols; a processor electrically connected to the display and the communication circuit; and a memory electrically connected to the processor, wherein the memory stores a plurality of messaging applications for providing one of a plurality of messaging services, and the memory stores instructions which, when executed by a processor, cause the processor to perform operations comprising: displaying a user interface on the display, in which the user interface is configured to provide, to one message thread, the plurality of messaging applications or outgoing and incoming messages associated with the plurality of messaging services; storing, in the memory, a plurality of first identifications (IDs) identifying communication with the external electronic device and/or an account associated with the external electronic device, using one of each of the plurality of messaging applications and the plurality of messaging services; storing, in the memory, at least one second ID identifying a message thread associated with communication with the external electronic device and/or an account associated with the external electronic device; receiving a new incoming message using the at least one communication circuit; and selecting a message thread for the new incoming message at least partially based on at least one of the first IDs and the second ID.
Owner:SAMSUNG ELECTRONICS CO LTD

Suction and release double paper mechanism of sticky handle paper cup forming machine

A double paper piece absorbing and releasing mechanism for a pasted handle type paper cup forming machine comprises an absorbing and releasing structure and a stacking structure. A cam rocker drive mechanism is connected with a connecting rod to form the absorbing and releasing structure, the connecting rod is movably connected upwards with a sliding plate, rollers and pins, the sliding plate is sequentially connected upwards with a pipe seat, suction pipes and suction nozzles, and a paper frame plate is arranged above the suction nozzles. The stacking structure mainly comprises the paper frame plate, a paper frame strip, a support leg, a blowing seat, a blowing pipe, a horizontal shaft, a support rod, a frame leg, paper stoppers, paper blocking rods and the like. The paper blocking rods are arranged on the peripheries of a front opening and a rear opening of the paper frame plate, and each paper blocking rod is used for blocking double paper pieces. The double paper piece absorbing and releasing mechanism has the advantages that the double paper pieces are stacked by the aid of a single paper frame, a single cam rocker drives two groups of suction nozzles to move, a paper cup with a handle can be produced once, the problem that the paper cup is too hot to handle is solved, and the cost burden of secondary manufacture is relieved.
Owner:瑞安市胜利机械有限公司

Rolling process of improving 38CrMoAl steel rolling state structure

The invention discloses a rolling process of improving a 38CrMoAl steel rolling state structure. The rolling process is characterized by comprising the following steps of 38CrMoAl steel blank selection, steel blank heating, steel blank rough rolling, steel blank medium rolling, steel blank finish rolling and steel cooling. The rolling process of improving the 38CrMoAl steel rolling state structurehas the following advantages that a relatively low final rolling temperature is controlled, so that the surface temperature of a rolled piece is lower than a temperature of a core portion in the process, the steel core portion obtains a relatively large compressive stress in the rolling process, the structure uniformity is greatly improved, and crystal grains are further refined; the final rolling temperature is lowered to be close to the actual critical phase change point Ar3, a phase change from gamma to alpha is promoted, and a nucleation site of ferrite is increased, so that a structure morphology of a product is ferrite and pearlite structures in a balanced state; and the rolling process is green and environmentally friendly, does not pollute the environment, is capable of lowering the cost and increasing the benefit and particularly has important significance of controlling the online structure and the performance of medium-low carbon alloy structural steel.
Owner:XINING SPECIAL STEEL +1

Metering and on-line control method of cement production water footprint

The invention relates to a metering and on-line control method of a cement production water footprint and belongs to the field of water resource management of cement production. The metering and on-line control method is characterized in that the method is accomplished in a cement production water footprint metering and on-line control system controlled by a central control computer, and comprises the steps of measuring fresh water supplement quantity, circulating water quantity, discharged water quantity and effective water utilization quantity in real time under the control of the central control computer, accordingly working out comprehensive water consumption, water loss, and a circulating rate, an effective utilization rate and a loss rate of a water resource, sequentially judging whether the circulating rate of the water resource reaches a standard, whether the loss rate and the circulating rate of the water resource meet a set threshold simultaneously, and whether the effective utilization rate of the water resource is higher than 50%, and adopting failure removal measures corresponding to different stages till meeting a set object. The method facilitates boosting the green progress of the cement industry under the condition of saving the water resource, and facilitates saving the initial investment and operating cost.
Owner:BEIJING UNIV OF TECH

Efficient smut inoculation method for sugarcane seedlings

A smut inoculation method for sugarcane seedlings comprises the steps as follows: after seven true leaves of each seedling are grown out, the seedling is pulled out from an incubator, the middle-upper parts of the leaves are cut off, 2-3 old leaves at the base part are removed, a spore suspension with the ustilago scitaminea syd concentration of 1*10<7> spores/ml is adopted for soaking the middle-lower part of the pulled seedling for 10 min, and the seedling is sealed, placed in a room at the temperature of 25-28 DEG C overnight in a moisture preserving manner, transplanted in a nutrient bag next day and planted in the field after survived; and combination morbidity is researched during final selection, combination with the combination morbidity higher than 25% is eliminated, and seedlings with good and healthy characters are screened out to enter a next stage for observation. According to the invention, morbidity of the seedlings inoculated with ustilago scitaminea syd are remarkable, the reproducibility is good, the test cycle is short, the operability is high, the cost is low, and a large quantity of seedlings can be inoculated; and the method can be applied to a sugarcane variety breeding institution for new sugarcane variety breeding resistant to sugarcane smut.
Owner:SUGARCANE RES INST OF YUNNAN ACADEMY OF AGRI SCI
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