在板框压滤机深度脱水过程中,铁盐 + 石灰作为传统的污泥调理剂,虽然可以处理泥饼含水率达60%以下,但仍存在泥饼增量大、恶化作业环境、综合处理成本较高等缺点。本文采用新型污泥调理剂A + B组合在污水处理厂进行生产性试验。结果表明...在板框压滤机深度脱水过程中,铁盐 + 石灰作为传统的污泥调理剂,虽然可以处理泥饼含水率达60%以下,但仍存在泥饼增量大、恶化作业环境、综合处理成本较高等缺点。本文采用新型污泥调理剂A + B组合在污水处理厂进行生产性试验。结果表明该药剂组合泥饼含水率在48.68%~56.48%之间,污泥脱水效果比较理想。并在同等进泥绝干泥量0.83 t下,新型A + B药剂较铁盐 + 石灰药剂在污泥增量、药剂成本、泥饼运输成本及综合成本方面均有较大优势。可以代替传统铁盐 + 石灰药剂,实现水厂污泥脱水的降本增效,具有较高的市场推广价值。In the process of deep dehydration of plate and frame filter press, iron salt and lime, as the traditional sludge conditioner, can treat the moisture content of mud cake of less than 60%, but there are still disadvantages of large increment of mud cake, deterioration of operating environment and high comprehensive treatment cost. In this paper, the new sludge conditioner A + B combination is used in the sewage treatment plant. The results show that the moisture content of the combined mud cake is between 48.68% and 56.48%, and the effect of sludge dewatering is relatively ideal. In addition, under the same amount of 0.83 t, the new A + B agent has great advantages over the iron salt + lime agent in terms of sludge increment, pharmaceutical cost, mud cake transportation cost and comprehensive cost. It can replace the traditional iron salt + lime agent to realize the cost reduction and efficiency increase of sludge dehydration in the water plant, which has high marketing value.展开更多
We proposed an efficient scheme for constructing a quantum controlled phase-shift gate and generating thecluster states with rf superconducting quantum interference devices (SQUIDs)coupled to a microwave cavity throug...We proposed an efficient scheme for constructing a quantum controlled phase-shift gate and generating thecluster states with rf superconducting quantum interference devices (SQUIDs)coupled to a microwave cavity throughadiabatic evolution of dark eigenstates.During the operation,the spontaneous emission is suppressed since the rf SQUIDsare always in the three lowest flux states.Considering the influence from the cavity decay with achievable experimentalparameters,we numerically analyze the success probability and the fidelity for generating the two-SQUID maximallyentangled state and the controlled phase-shift gate by adiabatic passage.展开更多
A scheme is proposed to generate W state with qubits of superconducting quantum interference devices （SQUIDs）, based on adiabatic passage along dark state. Taking advantages of adiabatic passage, the scheme is very ...A scheme is proposed to generate W state with qubits of superconducting quantum interference devices （SQUIDs）, based on adiabatic passage along dark state. Taking advantages of adiabatic passage, the scheme is very robust against decoherence, and it does not need to control the classical field and the interaction time accurately. Because of the achievable strong coupling between SQUID qubits and cavity, W state can be generated with high successful probability.展开更多
The recent discovery and realizations of higher-order topological insulators enrich the fundamental studies on topological phases.Here,we report three-dimensional(3D)wave-steering capabilities enabled by topological b...The recent discovery and realizations of higher-order topological insulators enrich the fundamental studies on topological phases.Here,we report three-dimensional(3D)wave-steering capabilities enabled by topological boundary states at three different orders in a 3D phononic crystal with nontrivial bulk topology originated from the synergy of mirror symmetry of the unit cell and a non-symmorphic glide symmetry of the lattice.The multitude of topological states brings diverse possibilities of wave manipulations.Through judicious engineering of the boundary modes,we experimentally demonstrate two functionalities at different dimensions:2D negative refraction of sound wave enabled by a firstorder topological surface state with negative dispersion,and a 3D acoustic interferometer leveraging on second-order topological hinge states.Our work showcases that topological modes at different orders promise diverse wave steering applications across different dimensions.展开更多
文摘在板框压滤机深度脱水过程中,铁盐 + 石灰作为传统的污泥调理剂,虽然可以处理泥饼含水率达60%以下,但仍存在泥饼增量大、恶化作业环境、综合处理成本较高等缺点。本文采用新型污泥调理剂A + B组合在污水处理厂进行生产性试验。结果表明该药剂组合泥饼含水率在48.68%~56.48%之间,污泥脱水效果比较理想。并在同等进泥绝干泥量0.83 t下,新型A + B药剂较铁盐 + 石灰药剂在污泥增量、药剂成本、泥饼运输成本及综合成本方面均有较大优势。可以代替传统铁盐 + 石灰药剂,实现水厂污泥脱水的降本增效,具有较高的市场推广价值。In the process of deep dehydration of plate and frame filter press, iron salt and lime, as the traditional sludge conditioner, can treat the moisture content of mud cake of less than 60%, but there are still disadvantages of large increment of mud cake, deterioration of operating environment and high comprehensive treatment cost. In this paper, the new sludge conditioner A + B combination is used in the sewage treatment plant. The results show that the moisture content of the combined mud cake is between 48.68% and 56.48%, and the effect of sludge dewatering is relatively ideal. In addition, under the same amount of 0.83 t, the new A + B agent has great advantages over the iron salt + lime agent in terms of sludge increment, pharmaceutical cost, mud cake transportation cost and comprehensive cost. It can replace the traditional iron salt + lime agent to realize the cost reduction and efficiency increase of sludge dehydration in the water plant, which has high marketing value.
文摘We proposed an efficient scheme for constructing a quantum controlled phase-shift gate and generating thecluster states with rf superconducting quantum interference devices (SQUIDs)coupled to a microwave cavity throughadiabatic evolution of dark eigenstates.During the operation,the spontaneous emission is suppressed since the rf SQUIDsare always in the three lowest flux states.Considering the influence from the cavity decay with achievable experimentalparameters,we numerically analyze the success probability and the fidelity for generating the two-SQUID maximallyentangled state and the controlled phase-shift gate by adiabatic passage.
基金Supported by the Foundation of Educational Committee of Fujian Province under Grant Nos.JB09012 and JB09013
文摘A scheme is proposed to generate W state with qubits of superconducting quantum interference devices （SQUIDs）, based on adiabatic passage along dark state. Taking advantages of adiabatic passage, the scheme is very robust against decoherence, and it does not need to control the classical field and the interaction time accurately. Because of the achievable strong coupling between SQUID qubits and cavity, W state can be generated with high successful probability.
基金supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2016-CRG5-2950KAUST Baseline Research Fund BAS/1/1626-01-01+3 种基金supported by the Hong Kong Research Grants Council (GRF 12302420, 12300419, ECS 22302718, CRF C6013-18G)the National Natural Science Foundation of China via the Excellent Young Scientist Scheme (Hong Kong & Macao) (#11922416)the Youth Program (#11802256)Hong Kong Baptist University (RC-SGT2/18-19/ SCI/006)。
文摘The recent discovery and realizations of higher-order topological insulators enrich the fundamental studies on topological phases.Here,we report three-dimensional(3D)wave-steering capabilities enabled by topological boundary states at three different orders in a 3D phononic crystal with nontrivial bulk topology originated from the synergy of mirror symmetry of the unit cell and a non-symmorphic glide symmetry of the lattice.The multitude of topological states brings diverse possibilities of wave manipulations.Through judicious engineering of the boundary modes,we experimentally demonstrate two functionalities at different dimensions:2D negative refraction of sound wave enabled by a firstorder topological surface state with negative dispersion,and a 3D acoustic interferometer leveraging on second-order topological hinge states.Our work showcases that topological modes at different orders promise diverse wave steering applications across different dimensions.
