Recycled Water Research Articles

Effect of Organic or Inorganic Fertilization on Microbial Flocs Production in Integrated Cultivation of Ulva lactuca with Oreochromis niloticus and Penaeus vannamei

Different fertilization regimes in biofloc systems influence the predominance of distinct bacterial populations, impacting water quality and organism performance. This study evaluates the growth and nutrient absorption of the macroalgae Ulva lactuca when cultivated in an integrated system with Penaeus vannamei and Oreochromis niloticus in chemoautotrophic and heterotrophic systems. The experiment lasted 45 days and comprised two treatments, each with three replicates: chemoautotrophic—utilizing chemical fertilizers; heterotrophic—employing inoculum from mature biofloc shrimp cultivation, supplemented with organic fertilizers. Each treatment consisted of three systems, each containing a 4 m3 tank for shrimp, 0.7 m3 for tilapia, and 0.35 m3 for macroalgae, with continuous water circulation between tanks and constant aeration. Water quality analyses were carried out during the experiment, as were the performances of the macroalgae and animals. The data were subjected to a statistical analysis. Results revealed an increase in macroalgae biomass and the removal of nitrate (57%) and phosphate (47%) during cultivation, with a higher specific growth rate observed in the chemoautotrophic treatment. Nonetheless, the heterotrophic treatment exhibited higher levels of protein in the macroalgae (18% dry matter) and phosphate removal rates (56%), along with superior maintenance of water quality parameters. Tilapia performance varied across treatments, with a higher final weight and weight gain recorded in the heterotrophic treatment. The recycling of water from an ongoing biofloc cultivation with organic fertilization demonstrated viability for macroalgae cultivation within an integrated system involving shrimp and fish.

Low-Cost Grey Water Treatment System Design And Treatability Studies In Relation To Recycling And Reuse In Rural Area of Angul District of Odisha

As global water scarcity intensifies, there is a growing need for sustainable water management solutions, particularly in rural areas where access to clean water is often limited. This study focuses on the development of a low-cost greywater treatment system tailored for rural settings, emphasizing the recycling and reuse of greywater. The research encompasses the design, implementation, and treatability studies of the proposed system, aiming to provide an affordable and effective solution for improving water sustainability in resource-constrained communities. The designed greywater treatment system incorporates cost-effective technologies and locally available materials to ensure its feasibility in rural contexts. The treatability studies explore the system's efficiency in removing contaminants commonly found in greywater, evaluating its potential to meet water quality standards suitable for various non-potable applications. Emphasis is placed on the system's adaptability to local conditions, promoting community engagement and ownership for long-term sustainability. By addressing the unique challenges faced by rural areas, this research contributes to the broader goal of achieving water security through decentralized, affordable, and environmentally conscious greywater treatment solutions. The findings from this study can inform policymakers, engineers, and local communities on practical approaches to enhance water quality, reduce environmental impact, and promote water recycling and reuse in rural settings.

Cleaner reactive dyeing with the recycled dyeing wastewater

In order to recycle water and inorganic salts, sodium persulphate (SPS) was used to degrade the C.I. Reactive Red 195 (RR195) dyeing wastewater. The thermodynamic and kinetic relationships of RR195 dyeing in cleaner and conventional dyeing processes were analyzed and compared. The feasibility of the one-bath cyclic dyeing in the recycled dyeing wastewater was confirmed through the properties of dye utilization, color parameters and energy conservation. The appropriate conditions were 0.3 g/L of SPS and treatment at 95 °C for 30 min, which resulted in a decolorization rate of 99.7% for the dyeing wastewater, mainly due to the action of radical sulfate. When cotton fabric was dyed with the cleaner dyeing, the kinetic was pseudo-second-order and the thermodynamic was Freundlich adsorption. There was a 47.5% reduction in half dyeing time, a greater diffusion coefficient and standard affinity, and lower entropy and enthalpy values when dyeing in reused wastewater. Cotton fabrics were dyed with the proposed cleaner dyeing process, which reduced the amount of water and inorganic salt by 95.8% and 89.8%, respectively. The total organic carbon (TOC), biochemical oxygen demand (BOD5) and chemical oxygen demand (COD) were 53.6%, 69.8% and 42.6% lower than the conventional dyeing process, respectively. The recommended technology not only reduces the amount of dyeing wastewater but also enables the recycling of inorganic salts and water, which makes great progress in the textile industry.

Integrating electro-Fenton and microalgae for the sustainable management of real food processing wastewater

The present study demonstrates, for the first time, the feasibility of a two-step process consisting of Electro-Fenton (EF) followed by microalgae to treat highly loaded real food processing wastewater along with resource recovery. In the first step, EF with a carbon felt cathode and Ti/RuO2–IrO2 anode was applied at different current densities (3.16 mA cm−2, 4.74 mA cm−2 and 6.32 mA cm−2) to decrease the amount of organic matter and turbidity and enhance biodegradability. In the second step, the EF effluents were submitted to microalgal treatment for 15 days using a mixed culture dominated by Scenedesmus sp., Chlorosarcinopsis sp., and Coelastrum sp. Results showed that current density impacted the amount of COD removed by EF, achieving the highest COD removal of 77.5% at 6.32 mA cm−2 with >95% and 74.3% of TSS and PO43− removal, respectively. With respect to microalgae, the highest COD removal of 85% was obtained by the culture in the EF effluent treated at 6.32 mA cm−2. Remarkably, not only 85% of the remaining organic matter was removed by microalgae, but also the totality of inorganic N and P compounds, as well as 65% of the Fe catalyst that was left after EF. The removal of inorganic species also demonstrates the high complementarity of both processes, since EF does not have the capacity to remove such compounds, while microalgae do not grow in the raw wastewater. Furthermore, a maximum of 0.8 g L−1 of biomass was produced after cultivation, with an accumulation of 32.2% of carbohydrates and 25.9% of lipids. The implementation of the two processes represents a promising sustainable approach for the management of industrial effluents, incorporating EF in a water and nutrient recycling system to produce biomass that could be valorized into clean fuels.

Prediction of the effect of adsorption on the retention of organic compounds by NF/RO using QSPR-ANN

<p>Understanding the retention of organic compounds (OCs) is critical for membrane applications in water recycling. The objective of this study was to create an optimized model using Artificial Neural Networks for Quantitative Structure-Property Relationship (QSPR-ANN) to predict the effect of adsorption on the retention of organic compounds (OCs) by nanofiltration (NF) and reverse osmosis (RO). An optimal model (QSPR-ANNoptimal) characterized by a similar structure (13 neurons in the inputs layer, 11 neurons in the hidden layer, and 1 neuron in the output layer) is constructed to predict the effect of adsorption on the retention of organic compounds by membranes. A set of 273 data points was used to test the neural network. the data set was used 70% for training, 15% for validation, and 15% for testing. For the most promising neural network model, the calculated retention values were compared to the experimental retention values, and good correlations were found (the determination coefficient "R2 = 0.9872" and the root mean squared error "RMSE = 2.2743%" for the test phase). This indicates the good robustness of the established QSPR-ANN model and the possibility of predicting the various parameters that characterize the retention of OCs by RO/NF. Sensitivity analysis revealed that the effect of adsorption retention of organic compounds by reverses osmosis and nanofiltration membranes depends more precisely on two important interactions (hydrophobic/adsorption and steric hindrance).</p>

Evolution law of conductivity value in wet-end system of recycled pulp and its regulation strategy

The closed cycle of white water in the paper-making process is an important way to reduce material loss, water consumption, and wastewater discharge. However, how to improve the quality of white water and increase the efficiency of white water recycling is still a challenge. Faced with the increasing conductivity value of white water in the process of white water circulation, in this study, the factors affecting the conductivity value of white water for recycled pulp and the strategies for regulating the conductivity value were investigated by simulating the white water circulation during the paper-making process. The experimental results indicate the accumulation of inorganic salts is one of the reasons for the increasing conductivity value of white water. When inorganic salts accumulate to dynamic equilibrium, the increase amplitude of conductivity caused by inorganic salts does not exceed 5 % of the initial conductivity. Under the white water circulation, the polyelectrolytes formed by degradated starch are the main factor for the continuous increasing conductivity value of white water. The retention of starch, during the paper-making process, can be improved by adding in-situ generated aluminum hydroxide colloids and the polyelectrolytes from starch degradation in white water can also be adsorbed by aluminum hydroxide precipitates. The effects of soluble organic matter and dissolved inorganic matter on white water conductivity were revealed, and the formation pattern of conductivity value in the wet-end system of recycled pulp was derived. At the same time, methods for removing organic matter and polyelectrolytes were proposed. Both are helpful to improve the quality of white water for paper-making industry and reduce the pollution of the wastewater.

Potassium isotopic evidence for recycling of surface water into the mantle transition zone

Potassium isotopic evidence for recycling of surface water into the mantle transition zone

Efficiency measurement of the water recycling system in a fuzzy environment

Efficiency measurement of the water recycling system in a fuzzy environment

Environmental stewardship in the oil and gas sector: Current practices and future directions

This paper provides an overview of the current practices and future directions in environmental stewardship within the oil and gas industry, focusing on key areas of concern and strategies for improvement. The oil and gas industry has made significant strides in environmental stewardship in recent years, driven by a combination of regulatory requirements, corporate initiatives, and stakeholder pressure. One of the primary areas of focus has been the reduction of greenhouse gas emissions associated with extraction, refining, and transportation processes. Companies have implemented technologies such as carbon capture and storage to minimize their carbon footprint, alongside investments in renewable energy sources and energy efficiency measures to transition towards cleaner energy alternatives. Furthermore, the industry has placed increasing emphasis on the responsible management of water resources, recognizing the potential environmental impacts of water extraction and usage in oil and gas operations. Strategies for water recycling, reuse, and wastewater treatment have been adopted to mitigate pollution and minimize strain on local ecosystems. Biodiversity conservation has also emerged as a critical aspect of environmental stewardship in the oil and gas sector, with companies undertaking environmental impact assessments and collaborating with conservation organizations to minimize habitat disruption and restore ecosystems affected by their operations. Community engagement and social responsibility are integral components of environmental stewardship, with companies seeking to address the social impacts of their operations through employment opportunities, infrastructure development, and social programs benefiting local communities. However, the industry continues to face challenges and limitations in its efforts to minimize environmental impact. Accidental spills, leaks, and other incidents pose significant ecological risks, highlighting the importance of stringent safety regulations and emergency response protocols. Moreover, the transition to renewable energy presents challenges for traditional oil and gas companies, requiring substantial capital investment and strategic planning. To address these challenges and advance environmental stewardship, several future directions are proposed. These include accelerating the transition to renewable energy, enhancing transparency and accountability in reporting environmental performance, strengthening environmental regulations and enforcement, investing in research and development of innovative technologies, and fostering collaboration among industry stakeholders, governments, NGOs, and local communities. Keywords: Stewardship, Oil, Gas, Sustainability, Climate, Mitigation

A practical study on the near-zero discharge of rainwater and the collaborative treatment and regeneration of rainwater and sewage

Non-conventional water recovery, recycling, and reuse have been considered imperative approaches to addressing water scarcity in China. The objective of this study was to evaluate the technical and economic feasibility of Water Reclamation Plants (WRP) based on an anaerobic-anoxic-oxic membrane bioreactor (A2O-MBR) system for unconventional water resource treatment and reuse in towns (domestic sewage and rainwater). Rainwater is collected and stored in the rainwater reservoir through the rainwater pipe network, and then transported to the WRP for treatment and reuse through the rainwater reuse pumping station during the peak water demand period. During a year of operation and evaluation process, a total of 610,000 cubic meters of rainwater were reused, accounting for 10.4 % of the treated wastewater. In the A2O-MBR operation, the average effluent concentrations for COD (chemical oxygen demand), NH4+-N (ammonium), TN (total nitrogen), and TP (total phosphorus) were 14.23 ± 4.07 mg/L, 0.22 ± 0.26 mg/L, 11.97 ± 1.54 mg/L, and 0.13 ± 0.09 mg/L, respectively. The effluent quality met standards suitable for reuse in industrial cooling water or for direct discharge. The WRP demonstrates a positive financial outlook, with total capital and operating costs totaling 0.16 $/m3. A comprehensive cost-benefit analysis indicates a positive net present value for the WRP, and the estimated annualized net profit is 0.024 $/m3. This research has achieved near-zero discharge of wastewater and effective allocation of rainwater resources across time and space.

Is Lyophilization Key for Transportation and Storage of Biopharmaceutical Drug Products in Space?

Long-lasting space missions as well as space tourism are technically possible today and economically in reach. It is a matter of time until the use of biopharmaceutical drug products in space will be common practice. Until drug product manufacturing in space is possible, the products need to be brought to space with rockets, which means that stable and light-weight products are preferred. Lyophilization is a promising approach to reduce weight during transportation and achieve storage stability at room temperature without cold-chain demands. This implies that recycled water in space needs to be used for reconstitution which poses a microbiological challenge and should be considered during formulation development. Furthermore, administration of the injectable drugs in space has an impact on the chosen packaging material which needs to be considered during drug product development.

Water markets and water inequality: China's water rights trading pilot

Water inequality could exacerbate global water scarcity due to the finite nature of water resources. Water markets aimed at overcoming failures in public water distribution systems may offer potential solutions to water inequality. However, existing studies failed to explain how water markets and water inequality are related. This study constructs a water inequality-water market conceptual framework to fill this gap. It examines the influence of water markets on water inequality in the context of China's Water Rights Trading Pilot. This study argues that water markets based on economic rationality can mitigate water inequality compared to command-and-control water policies. In addition, the mitigating effect of water markets on water inequality relies on changing the industrial structure, promoting technological innovation in irrigation, and improving recycled water use. Finally, the influence of water markets on water inequality tends to be heterogeneous depending on differences in economic development, precipitation, and water demand.

IOT based water flow meter using ThingSpeak

The Large scale manufacturing companies are fully automated. Soft Drink Industries and Chemical industries have to constantly measure and quantify the liquids that they are handling during this automation process, and the most common sensor used to measure the flow of a liquid is a Flow Sensor. By using a flow sensor with a microcontroller like NodeMCU, we can calculate the flow rate, and check the volume of liquid that has passed through a pipe, and control it as required. Apart from manufacturing industries, flow sensors can also be found in the agriculture sector, food processing, water management, mining industry, water recycling, coffee machines etc. Further, a water flow sensor will be a good addition to projects like Automatic water dispenser and smart irrigation systems where we need to monitor and control the flow of liquids. In this project, we are going to build a water flow meter using NodeMCU. We will interface the water flow sensor with NodeMCU and LCDI2C, and program it to display the volume of water, which has passed through the valve. For this particular project, we are going to use the YF-S201 water flow sensor, which uses a hall effect to sense the flow rate of the liquid. The measured values are also communicated to the ThingSpeak cloud. The parameters can be monitored remotely form any part of the world. When the volume exceeds the threshold value, Thingspeak will activate the Thingspeak react to send a message to the responsible person with help of the IFTTT applet.

Inklusivitas Perekonomian di Kabupaten Hulu Sungai Utara Tahun 2022: Pendekatan Model Miyazawa

One of the goals and missions of achieving sustainable development is implementing economic development that adheres to the principle of inclusivity. Therefore, policymakers in a region must identify whether the economic development undertaken is already inclusive. Following these results, it is essential for policymakers to also conduct evaluations to determine the effectiveness of the policies made in realizing inclusive economic development. These two aspects can be addressed by applying the Miyazawa Input-Output Table. Meanwhile, over the past three years, Hulu Sungai Utara Regency has experienced a range of economic and social phenomena that necessitate further study of economic inclusivity. As a result of these conditions, the Regency has been selected as the locus for this research. The findings on the economic inclusivity in this Regency are expected to serve as a reference for policy in developing the economy of Hulu Sungai Utara. Based on the results, it is known that the economy in Hulu Sungai Utara Regency has not yet been fully inclusive. Investments in sector code E (Water Supply, Waste Management, Waste, and Recycling), sector code A (Agriculture, Forestry, and Fishery), sector code C (Manufacturing Industry), and sector code J (Information and Communication) have the potential to increase the welfare of low-income communities, which would then yield an inclusive economic development in the area.

The effect of a brief educational programme for improving attitudes about purified recycled water

AbstractWith a growing need for efficient use of water in a large metropolitan community, a municipal water district has developed an experiential educational programme to help customers develop acceptance of purified recycled water (PRW). This programme involves touring a small‐scale working purification facility that does not provide consumer drinking water but serves as a demonstration centre. Two empirical studies demonstrated the positive impact of this educational program. In Study 1, a pre‐/post‐research design was used to examine scores on a measure of attitudes about PRW for 70 undergraduate students who were asked to tour the demonstration centre. These participants expressed more favourable attitudes after the tour than they expressed before the tour (t = 8.76, df = 68, p < 0.001, d = 1.06), suggesting that the demonstration centre positively impacted attitudes about PRW. In Study 2, an experimental design allowed for a comparison of attitudes about PRW for undergraduate students who were given an informational tour of the demonstration centre (n = 27), compared to students who did not tour the demonstration centre until after their data were collected (n = 30). Participants who toured the demonstration centre expressed more positive attitudes on a self‐report measure of PRW attitudes than those who had not completed the tour (t = 2.24, df = 50.0, p = 0.03, d = 0.60); however, the two groups did not differ in the amount of water they sampled (t = 0.29, df = 55.65, p = 0.77, d = 0.08) or in facial expressions associated with happiness (t = 1.34, df = 53.89, p = 0.19, d = 0.38) or disgust (t = 0.86, df = 53.14, p = 0.40, d = 0.39) when drinking a sample of water. Together, these studies demonstrate the effectiveness of an experiential demonstration centre in increasing positive attitudes towards purified recycled water.

Analysis of Physical Properties of Grey water from Residential Buildings

One way to conserve water is to find a safe way to use it further than formerly. Grey water recycling is now accepted as sustainable result to the general increase of the fresh water demand. Grey water refers to water that has formerly been used in some way but which can be reused or reclaimed in order to conserve fresh water. It's considered fairly simple to treat slate water to make it safe for public use because of lower situations of pollutants. The treatment of slate water from domestic structures is a critical process for sustainable water operation. This study outlines a comprehensive methodology, beginning with a thorough feasibility assessment, including considerations of available space, original regulations, and propinquity to water exercise points. Analysis of on- point slate water characteristics informs the design of an effective treatment system, incorporating source separation, pre-filtration, natural treatment, filtration, disinfection ,storehouse ,and distribution .Construction emphasizes flawless integration with being structure, and performance testing ensures system optimization. Clear operating procedures, regular monitoring, and compliance reviews contribute to ongoing success. Community education enterprise play a vital part in promoting responsible water operation. This holistic approach, combining specialized effectiveness, environmental responsibility, and community engagement, demonstrates a sustainable model for slate water treatment in domestic settings.

Enhancing frameworks for utilising Sankey diagrams in modelling the water-energy nexus and circularity

Understanding the connection between water supply and energy consumption in a circular economy is crucial for managing the demands of these resources. Sankey diagrams have the potential to enhance the visualisation of resource flows. However, there is a knowledge gap regarding the effective use of Sankey diagrams to capture the water-energy nexus and circularity of water. This study focused on effectively utilizing Sankey diagrams to model the nexus of water and energy flows and to assess the circularity of water. A comprehensive literature review was conducted on major studies on water material flows and modelling. This was supported by a review of approaches for modelling circularity, which have evolved from the material circularity index. The newly developed framework in this paper models water resource flows at all stages of the water supply chain, embedding the nexus as an interaction and considering resource intensity and material circularity index at each node. A city-level case study in South Africa was then used to apply the recommendations, model circularity, and the water-energy nexus using Sankey diagrams. In terms of circularity, the results indicate that water loss in the study area was very high, accounting for up to 40% of the total water supply and the water recycle rate was still very low, ranging from 3% to 7%. In terms of the nexus, the residential sector was found to have the highest energy intensity for water supply, primarily due to energy demand for water heating. Exploring the use of renewable or solar energy for water heating will be of interest and value. The new approach presented in this study allows for the simultaneous consideration of objectives, enabling a more robust analysis of energy-effective water use and water circularity along the water supply chain.

The Influence of Green Marketing and Green Product Strategies on Purchasing Decisions (Case Study: Le Minerale Gallon Water in Lampung)

The purpose of this study is to demonstrate the efficiency and effectiveness of Green Marketing. We use a case study approach focusing on the branding efforts of Le Minerale's single-use gallon water, which has gained recognition recently. Initially considered environmentally unfriendly, Le Minerale attempted to counter this perception through extensive promotion incorporating strong environmental elements and the principles of Green Marketing. To support this Green Marketing effort, they also sought to convince consumers that their gallon water is a Green Product, featuring easily recyclable packaging and water that does not undergo chemical processes. To measure Green Marketing and Green Product, we utilized the following indicators: the presence of eco labels, environmental advertisements, and eco brands. The quantitative data analysis technique we employed is the associative method to determine the relationship between two or more variables. We also conducted Focus Group Discussions and interviews to reinforce our findings, in addition to relying on Likert scale-based questionnaires. Our goal is to produce a journal and scientific report explaining the relationship between Green Product and Green Marketing as independent variables influencing the purchasing decision of Le Minerale gallon water. For data processing, we have prepared SPSS technology. We hope that this research can serve as a foundation for studies on the importance of environmentally-focused promotion. Below is our research proposal on the effectiveness of Green Marketing and Green Product on the purchasing decision of Le Minerale gallon water.

Recycling water: board membership and industry-peer pressures

PurposeDespite the well-recognized importance of recycled water, the study of industry-peer pressure on recycled water is relatively new. This study investigates how organizations experience and react to industry-peer pressure to set recycled water targets. Additionally, this study investigates the role of board chairs involved in sustainability committees in contributing to responses to industry-peer pressure.Design/methodology/approachUsing Eviews 12, this study employed a pooled logistic regression model to analyze data from 1,346 firms on Taiwan and Taipei exchanges (2017–2020).FindingsThe findings revealed that frequency-based imitation drives recycled water target-setting diffusion. However, there is no direct relationship between outcome-based imitation and recycled water target-setting. Notably, outcome-based imitation drives the adoption of recycled water target-setting of firms with board-chair membership in sustainability committees.Research limitations/implicationsThis study faces certain data limitations. First, this study primarily focuses on water recycling. Future research could explore other ways to reduce water usage, such as using water-efficient equipment. Second, this study gathered information solely on the presence or absence of a board chairperson on the sustainability committee. Future researchers could explore the impact of the composition of sustainability committee on recycled water target-setting. Lastly, the sample used in this study is restricted to Taiwan's corporations that existed during 2017–2020. Future researchers may consider adopting a longitudinal design in other economies to address this limitation.Practical implicationsThe findings of this study offer several guidelines and implications for recycled water target-setting and the composition of sustainability committees. It responds to an urgent call for solutions to water shortages when pressure from governments and nongovernmental organizations is relatively absent. The number of industry peers that have already set recycled water targets is indispensable for motivating firms to set their own recycled water targets. In terms of insufficient water-related regulatory pressure and normative pressure, this study found evidence suggesting that the direct motivation for setting recycled water targets stems from mimetic pressures via frequency-based imitation. The evidence in this study suggests that policymakers should require companies to disclose their peers’ recycled water target information, as doing so serves as an alternative means to achieving SDG 6.3.Social implicationsRecycled water target-setting might be challenging. Water recycling practices may face strong resistance and require substantial additional resources (Zhang and Tang, 2019; Gao et al., 2019; Gu et al., 2023). Therefore, this study suggests that firms should ensure the mindfulness of board members in promoting the welfare of the natural environment when making recycled water target-setting decisions. To reap the second-mover advantage, firms must consider the conditions in which board members can more effectively play their role. Corporations may help their chairpersons in setting recycled water targets by recruiting them as members of sustainability committees. Meanwhile, chairpersons tend to activate accurate mental models when the water conservation performance of pioneering industry peers is strong enough to indicate the potential benefits of adopting recycled water target-setting. Investors’ and stakeholders’ understanding of how the composition of sustainability committees is related to recycled water target-setting may help to identify the potential drivers of firms’ water responsibility. Investors and stakeholders should distinguish firms in terms of the board chair’s membership of their sustainability committee and focus on water-use reduction outcomes in the industry. This study provides insights into circumstances whereby chairpersons help to restore the water ecosystem.Originality/valueThis study explains how frequency-based and outcome-based imitation are two prominent mechanisms underlying the industry-peer pressure concerning recycled water target-setting. Moreover, this study fills literature gaps related to the moderating roles of board-chair membership in sustainability committees concerning industry-peer pressure on recycled water target-setting.

Construction of PVDF-HKUST-1/BiVO4 hybrid electrospun flexible fiber membrane for enhanced piezo-photocatalytic reduction performance of Cr(VI)

For the practical implementation of Cr(Ⅵ) removal, effective and recyclable water treatment technology is essential. Polarized electric fields inside piezoelectric materials have proved to be a promising technique for facilitating photogenerated charge separation. In this work, Z-scheme heterojunction photocatalyst HKUST-1/BiVO4 and organic piezoelectric material PVDF were combined through electrospinning to create a novel flexible fiber PVDF-HKUST-1/BiVO4 (PVDF-HV) piezo-photocatalyst membrane. When the amount of HKUST-1/BiVO4 powder was 2.4% and the diameter of the obtained fiber film was 10 cm, the optimal reduction efficiency can be achieved by the piezoelectric photocatalytic reduction in solution with initial pH=2, and the piezo-photocatalytic efficiency of PVDF-HV reached up to 85.33% within 120 min, which was about 1.35 times and 2.19 times greater than that of single photocatalysis and piezoelectric catalysis, respectively. It successfully promoted photo charge separation based on the piezoelectric field in PVDF and the heterojunction produced between HKUST-1 and BiVO4. This research developed an efficient strategy for multi-path collection and exploitation of natural solar energy and vibration energy to boost photoactivity.