金海湖湖水经精密过滤-超滤预处理后，经反渗透/纳滤系统脱盐。考察脱盐系统在不同混装方式和不同操作压力下的脱盐率。脱盐系统采用商品化聚酰胺4040卷式纳滤和反渗透膜组件（VNF2和ULP100，贵阳时代沃顿有限公司）。待压力和流速稳定半小时后，记录脱盐系统的产水含盐量，计算获得整体脱盐率。操作压力1.3-1.8MPa，进水含盐量7.5g/L，水温30±2℃，进水流量2m3/h，膜组件数为6-8支。测量精确至小数点后两位。淡化系统整体脱盐率大于90%，达到任务书考核指标。\n
本数据集主要应用于苦咸水淡化研究。", "ds_source": "
实验获得。", "ds_process_way": "
操作压力1.3~1.8 MPa，进水含盐量7.5 g/L，水温30 ± 2℃，进水流量 2 m3/h时，实验测得产水含盐量，计算获得脱盐率。", "ds_quality": "
(1)数据生产过程：金海湖湖水经精密过滤-超滤预处理后，预处理出水经高压泵(CRN3-29，格兰富)泵入反渗透/纳滤脱盐系统，脱盐系统采用商品化聚酰胺4040卷式纳滤和反渗透膜组件（VNF2和ULP100，贵阳时代沃顿有限公司）。待压力和流速稳定半小时后，记录脱盐系统的产水含盐量，计算获得整体脱盐率。\n
(2)方法：操作压力1.3-1.8 MPa，进水含盐量7.5 g/L，水温30 ± 2℃，进水流量 2 m3/h，膜组件数为6-8支。测量精确至小数点后两位。\n
(3)结果：淡化系统整体脱盐率大于90%，达到任务书考核指标。", "ds_acq_start_time": "2020-07-20 00:00:00", "ds_acq_end_time": "2020-09-30 00:00:00", "ds_acq_place": "天津市滨海新区金海湖", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 112701, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "6a396166-140e-4a82-8625-da9d8f93bee6.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "d6a6694f-4988-40e1-ac47-a19692c05b3d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.5515" ], "quality_level": 3, "publish_time": "2021-10-22 15:26:51", "last_updated": "2025-05-29 17:26:50", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.MDBW.2021.18", "i18n": { "en": { "title": "Overall Desalination Rate Dataset for Tianjin Jinhai Lake Water Desalination System (July-September 2020)", "ds_format": "excel", "ds_source": "
Experimentally obtained.", "ds_quality": "
(1) Data production process: after the lake water of Jinhai Lake was pre-treated by precision filtration-ultrafiltration, the pre-treated effluent was pumped by a high-pressure pump (CRN3-29, Grundfos) into the reverse osmosis/nano-filtration desalination system, and the desalination system used the commercial polyamide 4040 rolled-type nano-filtration and reverse osmosis membrane modules (VNF2 and ULP100, Guiyang Times Walden Co., Ltd.). After the pressure and flow rate were stabilized for half an hour, the salt content of the produced water from the desalination system was recorded and calculated to obtain the overall desalination rate.\n
(2) Methods: operating pressure 1.3-1.8 MPa, influent salinity 7.5 g/L, water temperature 30 ± 2°C, influent flow rate 2 m3/h, and the number of membrane modules is 6-8 pieces. The measurement is accurate to two decimal places.\n
(3) Result: the overall desalination rate of the desalination system is more than 90%, reaching the assessment index of the task book.", "ds_ref_way": "", "ds_abstract": "
Jinhai Lake water is desalinated by reverse osmosis/nanofiltration system after precision filtration-ultrafiltration pretreatment. The desalination rate of the desalination system was examined under different mixing methods and different operating pressures. The desalination system used commercial polyamide 4040 rolled nanofiltration and reverse osmosis membrane modules (VNF2 and ULP100, Guiyang Times Walton Co., Ltd.). After the pressure and flow rate were stabilized for half an hour, the salt content of the produced water from the desalination system was recorded and calculated to obtain the overall desalination rate. The operating pressure was 1.3-1.8MPa, the salt content of the influent water was 7.5g/L, the water temperature was 30±2℃, the influent water flow rate was 2m3/h, and the number of membrane modules was 6-8. The measurement is accurate to two decimal places. The overall desalination rate of the desalination system is more than 90%, reaching the assessment index of the task book.\n
This dataset is mainly applied to the study of brackish water desalination.
", "ds_time_res": "", "ds_acq_place": "Jinhai Lake, Binhai New Area, Tianjin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Operating pressure 1.3~1.8 MPa, inlet water salinity 7.5 g/L, water temperature 30 ± 2 ℃, inlet water flow rate 2 m3/h when the experimental measurements of the salinity of the produced water, the calculation of the desalination rate obtained.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "纳滤", "反渗透", "预处理", "混装", "脱盐率" ], "ds_subject_tags": [ "水文化学" ], "ds_class_tags": [], "ds_locus_tags": [ "天津市滨海新区金海湖" ], "ds_time_tags": [ 2020 ], "ds_contributors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_managers": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "category": "其他" }